Dharma · AI Companion

瓔珞

keyūra

璎珞,密宗道次第广论中所说曼陀罗牌楼之垂悬珠串庄严。AI-generated

Type PhenomenaDifficulty IntroductoryTruth-level span outside the four-fold two-truths frameworkInitial AI estimate · evolves with use

A Contemporary ReadingAI-generated

What This Concept Is About

For most people, the word 瓔珞 (keyūra, "jeweled garland") immediately conjures the image of jeweled strands draped across a bodhisattva's chest and neckline—an image that recurs throughout countless scriptures. In the *Lotus Sūtra*, Guanyin is described as "adorned with jeweled garlands," and the bodhisattva's reward-body is said to be "wearing jeweled garlands on the body." This is the standard meaning of the term, and it is the form most familiar to us from Chinese Buddhist iconography.

But the material you have in hand comes from a Tibetan exegetical treatise, the *Chengwei lamrim chenmo* (藏傳論典《密宗道次第廣論》, *The Great Treatise on the Stages of the Path to Mantra*), and it takes a completely different route. This treatise does not treat the 瓔珞 as "an ornament worn on the bodhisattva's body," but rather as architectural ornamentation on the portal of a maṇḍala palace—that is, the strings of jeweled garlands hanging down from the "maṇḍala palace" that a practitioner sees and must perceive with clarity during tantric visualization. In other words, in the standard scriptures the 瓔珞 hangs on the bodhisattva's body; in this treatise, the 瓔珞 hangs on the maṇḍala architecture. The two ways of speaking coexist; they need not replace each other, but they must not be conflated.

If we unpack this "architectural garland" definition layer by layer, at least four things must be stated with precision:

First, on which level does the garland hang, and from which "mouth" does it descend? On the upper story of the portal, jeweled strands hang from within the whale's mouth, "to be made completely beautiful" (盡美應作); on the lower story of the portal, between the pillars and their supports, beside the banners, the garland hangs from the lion's mouth on the elephant's back; and at the net-garland level (網鬘層), garlands and half-garlands hang simultaneously from the makara fish's mouth. So what you see is not a vague "hanging jeweled strands," but rather a maṇḍala in which every level from bottom to top has its own designated "mouth for issuing pearls"—the whale above, the lion in the middle (standing on the elephant), and the makara fish at the net-garland level. Three different "mouths," three different sacred beasts, corresponding to the three vertical tiers of ornamentation on the maṇḍala.

Second, what is the garland made of, and what does it look like? The treatise gives a clear recipe: red thread strung with pearls forms the garland; at the center is placed a maṇi jewel; above, below, and on both sides it is adorned with gold. The overall shape is curved ("this also shows that the garland is curved"). The central section has several possible ornaments: one may make a lotus with a new moon, above it a sun-disc with a half-vajra; or one may hang jewels; or one may place a complete vajra on the flower. In other words, the garland is not a straight string of beads, but hangs in a curved arc, with a "sign emblem" set into its middle section—a sun-disc, half-vajra, or complete vajra—all of which are symbols with tantric meaning, not mere decoration.

Third, the "half-garland" must be discussed separately and must not be conflated with the garland. The treatise specifically establishes the term 半瓔珞 (ardha-keyūra, "half-garland") in opposition to the garland. The half-garland is a jeweled strand hung on both sides of the garland, somewhat shorter in measure. Its ends may hang "a large jewel set in gold," "a small whisk with a jeweled handle," or "small whisks hung within bells"—one kind hung at each end, in alternating arrangement—not uniformly hanging identical objects, but set in varied rhythm. Some other masters further state that flower-garlands and cloth-garlands are also hung beside the half-garland; if this is said, then the half-garland may form four or five layers. So the half-garland is not "a lesser grade of garland"; it is itself a small system with internal layering—what hangs at its ends, and how many layers are used where, all have their rules.

Fourth, the garland is not hung in isolation; it overlaps in sequence with the other ornaments of the portal. The treatise states: "On the painted clay wall, jeweled bricks, garlands, half-garlands, water-eaves, etc., overlap in sequence." Beneath the arrow-buttresses (the diagonal supports on both sides of the portal), the measurements of the garlands, half-garlands, and jeweled bricks "are also so much," determined by the width of the arrow-buttresses. That is to say, the entire facade of the portal is not "a strand hung here, a strand hung there," but has a strict layered stacking order from top to bottom, from inside to outside—the painted clay wall is at the very base; jeweled bricks, garlands, half-garlands, and water-eaves are added in sequence. The garland is only one link in this entire set of ornaments, but where it sits, what it adjoins, and how its measure and width are matched—all of this has rules.

Putting these four points together, the definition of 瓔珞 in this treatise is: on the portal of the maṇḍala palace, a curved jeweled garland issuing from the mouth of a sacred beast, strung on red thread with pearls, inset with a maṇi jewel and adorned with gold, overlapping in sequence with half-garlands, jeweled bricks, water-eaves, and other ornaments to form an architectural decorative system.

It is not an ornament; it is a part of speech in the grammar of the maṇḍala's facade.


A Walkthrough in Daily Life

This definition is quite technical, but it can actually enter several scenes of our contemporary lives in a very concrete way. I have deliberately chosen situations that seem utterly "unrelated" to show you that the design logic of the maṇḍala portal has "isomorphic" counterparts everywhere in modern life—we just don't call them 瓔珞.

Scene One: Museum Display and Exhibition Circulation.

Imagine walking into a Buddhist sculpture exhibition. The exhibition designer does not simply place the Buddha statues anywhere; they arrange: a guide path on the floor (the painted clay wall), guide graphics on the walls (jeweled bricks), lighting aimed at the statues (the function of canopies, garlands, and jeweled tassels within the curve), and back-panel patterns behind the statues (water-eaves, the net-garland level). You look up, and the light falling from the fixtures is treated as an arc rather than a straight line (the arc of the red thread, the arc of "this also shows that the garland is curved"); the strong light source at the center of the fixture is the "maṇi," and the weaker light on either side is the "gold-set string of pearls." This is translating a portal into the language of exhibition design.

Mapping walkthrough: if you only see "a Buddha statue in a display case," what you see is the 瓔珞 of the "worn on the body" variety—the one on the bodhisattva. If you realize that the entire exhibition hall facade itself is an "overlapping in sequence"—lights, walls, floor, and statues forming a single integrated system of ornamentation—then you have approached the kind described in the *Great Treatise*. The point of misreading is: taking "architectural ornament" as "mere decoration," and thereby ignoring the function of each level—where the light comes from (the whale's mouth), where the light converges (the lion's mouth, the makara's mouth), what curve is used, what symbols are embedded. This is the answer most people miss to the question "why must the mouth that issues the pearls be a sacred beast": it fixes the ornamentation at a specific position in the sacred narrative; it cannot be hung arbitrarily.

Scene Two: Contemporary Meditation Apps and Digital Sanctums.

How would a serious meditation app design its "practice space"? The most refined ones will not just give you a progress bar. They will have you: enter with a static image first (painted clay wall = the app's "preparation" phase); then present guiding phrases (jeweled bricks = structural guide text); then surface a core image or a single sentence (the "maṇi" = the central point); with auxiliary text or chimes on both sides (the "gold-set upper and lower sides"); the overall flow is arc-shaped rather than straight—guiding you from upper left to lower right, then curving back (the curved arc); finally closing in a moment of silence or an emblem (the tantric meaning of the complete vajra). This is not far-fetched on my part—you can liken it to "a contemporary digital version of the portal's sequence of ornaments."

Mapping walkthrough: in this digital "maṇḍala," what does the 瓔珞 correspond to? It corresponds to the central guiding arc—not a list arranged in a straight line, but a curved jeweled strand running from the whale's mouth (the opening image) through the lion's mouth (the main guidance) to the makara's mouth (the small detail of closure). The 半瓔珞 corresponds to the small bells or small whisks scattered at varied positions on both sides of the main arc—for instance, the occasional small reminders, a short verse, a tiny encouragement that pop up in the app. They are not the main line, but if they were absent, the entire ornamentation would collapse.

The easiest place to map wrongly: taking the 瓔珞 as the largest Buddha or bodhisattva image on the screen, and thus thinking this is the "worn on the body" garland; ignoring that the true "portal garland" is the grammar of the entire interface—it is not something inside the picture; it is the frame that holds the picture.

Scene Three: "Portal Ornamentation" in Intimate Relationships.

This one is not for novelty's sake, but to show you that the language of tantric architecture has correspondences even in the most everyday relationships.

Imagine a couple seriously tending their shared "home." The home itself has a "portal" quality—it is the entrance and outer shell of their shared maṇḍala. What is the sequence of ornamentation in this home? The ground (painted clay wall) = the physical space they share, such as the dining table, the sofa they sit on together; the jeweled bricks = the stable rituals that recur in the home, such as the daily breakfast, the words before sleep; the 瓔珞 = the curved connection that hangs from some specific source and runs through the entire home—for example, a child they raise together (the child hangs down from the "whale's mouth" of the family, stringing the two of them together); or a project they jointly sustain—a book, a sport, a project. The 半瓔珞 = the shorter auxiliary lines on both sides of this main connection—for example, each person's own friends, their own hobbies, an occasional afternoon out alone. The garland must curve—meaning the main connection cannot be a rigid straight line ("we must do such-and-such together today"); it must have an arc, leaving room.

Mapping walkthrough: the most common mapping error is taking the 瓔珞 as "the most splendid part of the relationship"—equating it with "gifts," "anniversaries," "expensive things." But the *Great Treatise* clearly states that the ornamentation of the garland lies in its method of stringing (the red thread), its center (the maṇi), its inlay (the gold), its curve—not in the preciousness of the material from which it is made. A curved string of pearls on red thread is closer to the original meaning of 瓔珞 than a straight gold chain—this is actually quite a subversive reminder: the dignity of a relationship lies not in how much is given, but in whether it is strung correctly and hangs with a curve.

Scene Four: The "Sequence of Ornamentation" in Self-Cultivation.

You can regard a person's inner self-care as a portal carried along with you. The portal cannot hang only the garland while omitting the jeweled bricks, water-eaves, and half-garlands—if any single item is missing, it is no longer dignified.

Specific walkthrough: painted clay wall = the physical foundation (sleep, diet, exercise); jeweled bricks = stable small habits (a fixed daily routine); the 瓔珞 = the core arc running through these foundations—for instance, a long-term practice (writing, meditation, learning a craft), hanging down from some initial "mouth" (the first class, the first journal entry), stringing together all your practice today; the "maṇi" at the center = your core motivation for doing this thing; the gold inlay = the auxiliary elements on both sides that keep the main line from being bare—notes, reference materials, the occasional companion; the 半瓔珞 = the slightly shorter side-lines beside the main line—fragments of daily inspiration, a casually taken photo, a bit of leisure reading. The curved form of the garland means the main line need not be straight—writing need not proceed from the first word to the last; exercise need not cover the same distance every day.

The easiest place to map wrongly: taking the 瓔珞 as "I must have a very glorious center"—and thus pursuing a particularly dazzling "maṇi" (a resounding achievement, a high-sounding label). But the "maṇi" in the *Great Treatise* is set at the very center of a red-threaded pearl garland; its reason for existing is not to shine independently, but to give the entire string of pearls a center around which to hang. Your core motivation, your core conviction, is the same—it need not be so bright that outsiders see it, but it must be set straight and hold the string together.


Why Contemporary People Need It

You might ask: what does a tantric practitioner's specialized knowledge of jeweled strands on a portal have to do with an ordinary contemporary person?

My answer is: not much directly, but the principle behind the "portal's sequence of ornamentation" is deeply relevant to contemporary people.

First, the contemporary attention span is "de-sequentialized." Almost any information stream we encounter today—from phone notifications, social media, news feeds—is "without sequence": notifications are not divided into main and auxiliary, feeds are not layered, jumps have no curve. Ten minutes of scrolling gives you not a portal but a messy junk stall. In such an environment, "overlapping in sequence" is almost a luxury. But people actually need it—research shows that people enter deep focus and relaxation more easily in environments with clear spatial structure; cluttered environments increase cognitive load and stress hormones. The architectural wisdom of the tantric maṇḍala portal is precisely the ultimate version of this: every ornament has its place, and none is hung "for decoration's sake"—if hung wrongly, the entire maṇḍala does not hold. Even if you are not a practitioner, this way of thinking—"all ornamentation has its sequence"—can be borrowed for your study, your bedroom, your work desk.

Second, contemporary people generally treat "ornamentation" as "luxury" or "decoration," and this is a misreading that needs correction. The *Great Treatise* does use words like "盡美應作" (make it completely beautiful) for the garland, but "盡美" is not "extremely luxurious." It means making, at the most fitting position, with the most fitting materials, the curve that best fits the structure—beauty lies in order, not in elaborateness. Contemporary product design has a similar concept called "authentically good"; tantric architectural ornamentation is the manifestation of this in religious art. Once you understand this, whenever you look at any ornamentation—Buddha statues, *thangka* paintings, temple architecture, maṇḍala sand paintings—you will no longer ask "why is it so sumptuous," but rather "why is it hung here, why this curve, why is this symbol set at the center." The latter way of asking is what truly enters into ornamentation.

Third, the existence of the "half-garland" is a gentle reminder. Many people think practice means "completeness," perfection, that all ornamentation must be present in full. But the *Great Treatise* specifically sets aside the term 半瓔珞, explicitly saying it is "slightly shorter," that it belongs to the sides of the main ornament—it need not be equal in length to the main ornament, need not shine as brightly as the main ornament, but it must exist. A portal with only the garland and no half-garlands is not well hung. Mapped to the human being: those things in your life that are a bit shorter than the main line, a bit lighter than the main line—a walk, a chat, reading a leisure book, telling a child a story that didn't need to be told—these are not waste, not a failed accompaniment to the main ornament; they are precisely the "half-garlands," the part of the entire portal facade that provides varied alternation. Understanding this can free you from some of the anxiety of "not being dignified enough" in your daily life.

Fourth, the act of "hanging from a mouth" is itself a profound language of practice. The garland on the portal does not appear out of nowhere; it hangs from the whale's mouth, the lion's mouth, the makara's mouth. Each sacred beast's "mouth" corresponds to the source of a particular vertical level of the maṇḍala. That is to say, every connection, every string of ornament, has a source. This is an important reminder in the tantric context: behind any of your ornamentations—your career, your family, your cultivation—there is a "mouth," and that "mouth" is one of your dispositions, one layer of your consciousness. Contemporary people are prone to look only at "what I have hung out," not at "where it came from." This detail of tantric architecture precisely forces the gaze back to the source.


Common Misreadings and Clarifications

Misreading One: Taking the 瓔珞 as a necklace worn on the bodhisattva's body.

This is the most widespread and the hardest to correct misreading. It is not wrong—many scriptures do indeed speak this way—but the material you have in hand follows the path of the *Chengwei lamrim chenmo*, which speaks of the jeweled strands on the maṇḍala portal. The two are not contradictory: one speaks from the perspective of the "adorner" (the Buddha or bodhisattva's body), the other from the perspective of the "adorned object" (the maṇḍala architecture). When reading this material, please keep in mind that the context is the latter, not the former.

Misreading Two: Taking the 瓔珞 as pure decoration, without function.

The treatise repeatedly says "hanging from such-and-such a mouth," "within the curve," "overlapping in sequence," "determined by the width of the arrow-buttresses"—all these phrases say: the position, curve, length, and neighboring elements of the garland all have structural function. It is not a string of pretty beads hung on a wall; it is an element bearing a structural role in the grammar of the portal's facade. If you remove one garland, the portal's layering immediately collapses by one tier. This applies to any ornamentation—ritual, space, artwork: every element in ornamentation is not decoration; if one is absent, the whole collapses by one tier.

Misreading Three: Conflating the 瓔珞 with the 半瓔珞.

The two are closely related but must be distinguished. The 瓔珞 is the main strand hanging from the whale's mouth, the lion's mouth, or the makara's mouth, formed as a curved arc of pearls strung on red thread, inset with a maṇi jewel and adorned with gold; the 半瓔珞 is a jeweled strand hung on both sides of the garland, slightly shorter in measure, whose ends may hang large gold-set jewels, small whisks with jeweled handles, or small whisks within bells, in varied alternation. Both exist simultaneously on a single portal (as at the net-garland level), but each has its own position and function. If you mistake them for the same thing, you lose the precision of the "main–auxiliary" pairing in tantric architecture.

Misreading Four: Understanding "盡美應作" as "must be extremely luxurious."

"盡美應作" is the phrase used in the *Great Treatise* concerning the garland on the upper story of the portal. But note what immediately follows: "from within the whale's mouth hang the pearl strings"—the sacred beast's mouth is the source of the pearl strings, and "盡美" means "the utmost fitness" relative to the position and function of this ornament, not "the utmost preciousness." Reading "盡美" as "extremely luxurious" is putting the eyes of contemporary consumerism on the face of a Tibetan exegetical treatise. The "beauty" in tantric ornamentation is always beauty that accords with sequence, not beauty that overrides sequence.

Misreading Five: Thinking that "curved" is merely an aesthetic preference.

The sentence "此亦顯瓔珞為曲者" (this also shows that the garland is curved) is extremely short, but it carries the core of tantric architecture—the curved bears dignity better than the straight. Straight-line ornamentation easily appears rigid; curved ornamentation has a sense of flow without being overly ostentatious. In the entire language of the tantric maṇḍala, "curve" is a recurring motif (canopies, garlands, and jeweled tassels hang within the curve). Once you understand this, when you look at *thangka* paintings, maṇḍala sand paintings, and the arcs, hanging drapes, and vaulted bends in monastery architecture—they are not stylistic choices; they are structural choices.


One final remark, tangential but not off-topic: the material you have in hand seems extremely specialized—the position, form, hanging mouth, and sequential overlap of a string of jewels on a maṇḍala portal—but what it speaks of is actually quite ordinary: in a structure, every element has its position and its curve; hang it wrongly, and the whole loses its dignity. This principle is called "overlapping in sequence" on a portal, "main line and half-garlands" in intimate relationships, "foundation–core–curve" in self-cultivation, and "interface grammar" in contemporary product design. The granularity of the language of practice is so fine that it reaches down to a single string of beads—which is precisely what can remind us: true dignity is never about piling on all the good things, but about letting each element hang in its proper position, from its proper mouth, in its proper curve. This point is worth taking home and putting to use, whether or not you are a practitioner.

Canonical EntryAI-generated

定义与核心要义

璎珞(keyūra),藏传论典《密宗道次第广论》所述,系曼陀罗宫殿牌楼上所悬垂之珠串庄严,以红线贯珠、中安摩尼、两旁金镶,作弯曲之相而高悬于牌楼诸层之间。此论之取径与一般经论不同:并非就佛菩萨身佩珠玉之义相作释,而系就曼陀罗建筑庄严之面向立说。论中除「璎珞」外,另立「半璎珞」一词与之对举,界划清楚。

主要阐述

一、璎珞之所在与悬挂规制

牌楼上层之璎珞,悬于曲线之内,与杂色宝盖、宝繐并列而设;其璎珞乃「从上鲸鱼口内悬诸珠串,尽美应作」。牌楼下层与柱擎持之间,于幡幢之旁,「从象身上狮子口中悬挂璎珞之规」,是于狮子口侧悬出璎珞之制。而网鬘层处则「从摩羯陀鱼口悬诸璎珞及半璎珞」,可知此层同时悬出璎珞与半璎珞二种。

二、璎珞之形制与作法

璎珞以红线串真珠为鬘,中央安置摩尼宝珠,两旁上下皆以金镶饰。又「此亦显璎珞为曲者」,明璎珞本身作弯曲之相。璎珞中段之庄严,则有作莲花初月、上有日轮半杵之制,亦有悬宝者,或于华上安圆满杵等不同作法。

三、半璎珞之别

「半璎珞者,论谓璎珞两旁所悬,较璎珞略短之宝鬘」。其端可悬「金镶大珠」、「宝柄小拂」,或「于铃中悬诸小拂」,「于一一端上随悬一种,间错庄严」。有余师复说于半璎珞之侧悬花鬘及衣鬘,「若如此说,则半璎珞成五重或四重」。

四、安立之层次

璎珞与半璎珞在牌楼诸层中,与其他庄严次第重叠而设。论云:「彩土墙上,宝砖、璎珞、半璎珞、水檐等次第重叠」。又箭垜之下,「璎珞半璎珞宝砖等,亦有尔许」,其量随箭垜之广而设。

不同部类与译本的表述差异

本条目所据为藏传论典部《密宗道次第广论》之说,以「璎珞」与「半璎珞」对举,反复就其悬挂位置、组成材料、形状、与其他庄严之次第重叠关系详加叙述,系就曼陀罗建筑庄严之面向立说,而非就佛菩萨身佩饰物之面向立说。此论中所用「璎珞」一词,与一般经论中作为佛菩萨身佩珠玉之义相之取径有所不同。

与相关概念的关系

半璎珞:与璎珞对举,系璎珞两旁所悬、形量较短之宝鬘,论中并列叙述二者之所在、形制与安立层次。

牌楼诸庄严:璎珞与半璎珞同为彩土墙上庄严之一,与宝砖、水檐等次第重叠而设;其量多寡随箭垜之广而定。

宝盖、宝繐:同为牌楼曲线之内所悬之庄严物,与璎珞并列。

代表性原文引用

- 「牌楼当悬杂色宝盖、璎珞、宝繐」,并谓此乃「在曲线之内」。 - 「从上鲸鱼口内悬诸珠串,尽美应作」。 - 「于幡幢旁,从象身上狮子口中悬挂璎珞之规」。 - 「从摩羯陀鱼口悬诸璎珞及半璎珞」。 - 「红线串真珠为鬘,中有摩尼,两旁上下皆以金镶」。 - 「此亦显璎珞为曲者」。 - 「有作莲花初月,上有日轮半杵庄严。有悬宝者,有于华上安圆满杵」。 - 「半璎珞者,论谓璎珞两旁所悬,较璎珞略短之宝鬘」。 - 「于一一端上随悬一种,间错庄严」。 - 「彩土墙上,宝砖、璎珞、半璎珞、水檐等次第重叠」。 - 「璎珞半璎珞宝砖等,亦有尔许」。

By SutraAI-generated

密宗道次第廣論B0068 · 藏傳論典部

本文《密宗道次第廣論》論及「瓔珞」,係從曼陀羅宮殿牌樓之莊嚴佈置而立說,並非就佛菩薩身佩珠玉之義相作釋,此與一般經論之取徑有所不同。論中除「瓔珞」外,並立「半瓔珞」一詞與之對舉,界劃清楚。

一、瓔珞之所在與懸掛規制。論云:「牌樓當懸雜色寶蓋、瓔珞、寶繐」,並謂此乃「在曲線之內」;又釋瓔珞之義云:「從上鯨魚口內懸諸珠串,盡美應作」,可知牌樓上層之瓔珞,乃從鯨魚口中吐出珠串以為莊嚴。又於牌樓下層與柱擎持之間,論明說:「於幡幢旁,從象身上獅子口中懸掛瓔珞之規」,是於獅子口側懸出瓔珞之制。此外,於網鬘層處,「從摩羯陀魚口懸諸瓔珞及半瓔珞」,顯示此層同時懸出瓔珞與半瓔珞二種。

二、瓔珞之形制與作法。論云:「紅線串真珠為鬘,中有摩尼,兩旁上下皆以金鑲」,明瓔珞以紅線貫穿真珠為鬘,中央安置摩尼寶珠,上下兩旁以金鑲飾。又「此亦顯瓔珞為曲者」,明瓔珞本身作彎曲之相。至於瓔珞中段之莊嚴,「有作蓮花初月,上有日輪半杵莊嚴。有懸寶者,有於華上安圓滿杵」。

三、半瓔珞之別。論謂「半瓔珞者,論謂瓔珞兩旁所懸,較瓔珞略短之寶鬘」,是瓔珞兩側所懸、形量較短之寶鬘。其端可懸「金鑲大珠」、「寶柄小拂」、或「於鈴中懸諸小拂」,「於一一端上隨懸一種,間錯莊嚴」。有餘師復說於半瓔珞之側懸花鬘及衣鬘,「若如此說,則半瓔珞成五重或四重」。

四、安立之層次。論云:「彩土墻上,寶磚、瓔珞、半瓔珞、水簷等次第重叠」,明瓔珞與半瓔珞在牌樓諸層中,與寶磚、水簷等莊嚴次第重疊而設。又箭垜之下,「瓔珞半瓔珞寶磚等,亦有爾許」,其量隨箭垜之廣而設。

綜上所述,本論以「瓔珞」與「半瓔珞」對舉,反覆就其懸掛位置(鯨魚口、獅子口、摩羯陀魚口)、組成材料(紅線、真珠、摩尼、金鑲)、形狀(曲者)、與其他莊嚴之次第重疊關係詳加敘述,乃就曼陀羅建築莊嚴之面向立說,而非就佛菩薩身佩飾物之面向立說。

Related