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Zi Wei Dou Shu (Purple Star Astrology) · Major star 12 of 14

Tian Liang 天梁, the sheltering star of the elder

Tian Liang 天梁 is the second star of the Southern Dipper in the 紫微斗數全書, five palaces ahead of Tian Fu: the sheltering star (蔭) that turns violence into calm. The text gives it an open, upright and unselfish character, steady in bearing and decisive in action.

The twelve palaces of the board, 巳 午 未 申 along the top, 辰 and 卯 down the left, 酉 and 戌 down the right and 寅 丑 子 亥 along the bottom, each marked with Tian Liang's brightness there by the 全書's seven-level table: brilliant (廟) in 子, 寅, 卯, 辰, 午, 戌; weak or fallen in 巳, 申, 亥. The brilliant palaces are outlined, and 天梁 is written in the centre. 子 廟 brilliant 丑 旺 strong 寅 廟 brilliant 卯 廟 brilliant 辰 廟 brilliant 巳 陷 fallen 午 廟 brilliant 未 旺 strong 申 陷 fallen 酉 得 gaining 戌 廟 brilliant 亥 陷 fallen 天梁
Tian Liang's brightness in each of the twelve palaces, by the 全書's seven-level table: the brilliant palaces outlined, the weak and fallen ones dashed. 寅 sits at the bottom left, as charts draw the board.

Facts

Order
12 of 14, in the order of the placing verse (安南北斗諸星訣)
Characters
天梁 Tiānliáng
On our chart
Sage; in detail, Tian Liang · Heavenly Beam (Sage)
Series and place
Tian Fu series (天府星系); five palaces ahead of Tian Fu
Element (全書)
Earth (土)
Dipper seat (全書)
The second star of the Southern Dipper (南斗第二)
Epithet (化氣)
蔭, shelter; also 壽, long life
Palace it masters (全書)
Parents (父母)
Brilliant (廟) in
子、寅、卯、辰、午、戌
Weak (不) or fallen (陷) in
巳、申、亥
Transformations (common table)
化祿 in 壬 years; 化權 in 乙 years; 化科 in 己 years
Life or Body Master
Body Master (身主) for a 寅 or 申 year
Our gloss
Protection, mentoring and principle; an elder's steadying wisdom (EsoTerrier's wording)

Meaning

The 全書's dialogue begins:

天梁屬土,南斗第二星也。司壽化氣為蔭……化暴戾為祥和。

In our translation: Tian Liang belongs to earth, the second star of the Southern Dipper. It keeps long life, its epithet is shelter, and ... it turns violence into calm.

The text makes it master of the Parents palace and gives a person 「性情磊落」, an open heart, 「循直無私」, straight and unselfish, and 「臨事果決」, decisive in affairs. The lines under 希夷先生 add a composed bearing and 「善識兵法」, a good judge of strategy. It softens the harm of Lian Zhen and the Fire and Bell stars, and the text says that only Tian Liang can check Po Jun. With Tian Ji it leans to religious and quiet lives.

The 形性賦: 「天梁穩重,心事玉潔冰清」, Tian Liang is steady and composed, its heart as clean as jade and as clear as ice.

The name means "heavenly beam", the roof beam that shelters a house. Our chart calls it the Sage, and our gloss reads: protection, mentoring and principle; an elder's steadying wisdom. The text's "long life" is an epithet of the star, never a promise about anyone.

On the board

Tian Liang is five palaces ahead of Tian Fu. It shares a palace with Tian Tong in 寅 or 申, the Sun in 卯 or 酉 and Tian Ji in 辰 or 戌, and stands alone in the other six. It is brilliant (廟) in 子, 寅, 卯, 辰, 午 and 戌, strong in 丑 and 未, gaining in 酉 and fallen (陷) in 巳, 申 and 亥. In the common table it takes 化祿 in a 壬 year, 化權 in a 乙 year and 化科 in a 己 year. It is the Body Master (身主) for anyone born in a 寅 or 申 year.

What this page leaves out

The dialogue also says what the star means for a person's health, rank and descendants, and that it keeps harm away. We record the register and repeat none of it.

Correspondences

Each item with how it stands: “sourced” is in the work cited, “our construction” is EsoTerrier’s own, and “disputed” means the sources disagree.

諸星問答論, the opening line
「天梁屬土,南斗第二星也。司壽化氣為蔭……化暴戾為祥和。」 Tian Liang belongs to earth, the second star of the Southern Dipper; it keeps long life and its epithet is shelter ... it turns violence into calm sourced
形性賦, form and nature
「天梁穩重,心事玉潔冰清」 Tian Liang is steady and composed, its heart as clean as jade and as clear as ice; a sketch of a type, never a reading of anyone's body sourced
The name in the sky (symbolic)
The third lord named in the Daoist Southern Dipper scripture; which star of 斗宿 in Sagittarius bears the name is not settled, and the chart reads none sourced
Dipper by series
Listed as a Southern Dipper star on some practitioner pages because it belongs to the Tian Fu series; the 全書 agrees, but for its own reason, the Dipper seat disputed
English names elsewhere
Heavenly Beam (English Wikipedia); sage (iztro); Heavenly Roof Beam on other sites sourced
Our short name and gloss
Sage: Protection, mentoring and principle; an elder's steadying wisdom. our construction

How the schools read it

紫微斗數全書, 諸星問答論
「性情磊落……循直無私。臨事果決」: open-hearted, straight and unselfish, decisive in affairs; its shelter reaches the person and the person's descendants.
紫微斗數全書, the lines under 希夷先生
The Southern Dipper's keeper of long life; clear and mild, steady in bearing, and 「善識兵法」, a good judge of strategy. It softens the harm of Lian Zhen and the Fire and Bell stars.
紫微斗數全書, 形性賦
Steady and composed, with a heart "as clean as jade and as clear as ice".
A modern practitioner table
Adds 刑, discipline, to its epithets; not in the 全書.
Three-harmony practice (三合派)
Reads it with Tian Ji, Tian Tong and the Moon, the group the 全書 itself names 機月同梁, and with the Sun.
EsoTerrier
Short name Sage; our gloss names protection, mentoring and principle. The text's "long life" is an epithet, never a promise.

Claims about it

  • Tian Liang is a Southern Dipper star whose place in the sky the chart reads.

    disputed

    What the record shows: The name is the third of the Southern Dipper scripture's six lords; which star bears it is not settled, and the chart places Tian Liang by counting.

  • Tian Liang protects a person from harm and gives a long life.

    unverified

    What the record shows: The 全書 calls it the star of long life and says much in that vein. It is the text's epithet.

  • Tian Liang is a Southern Dipper star because it belongs to the Tian Fu series.

    false

    What the record shows: Its Dipper seat comes from its name and the 全書's table; the series is a placement grouping.

Elsewhere on EsoTerrier

Sources

Primary texts (2)
  1. 紫微斗數全書, juan 1 to 3, attributed to Chen Tuan; a Ming manual, the text labelled Qing on Wikisource, which names no source edition. Chinese Wikisource transcription; our translations. zh.wikisource.org/wiki/紫微斗數全書
  2. 太上說南斗六司延壽度人妙經, the Daoist Southern Dipper scripture. Chinese Wikisource. zh.wikisource.org/wiki/太上說南斗六司延壽度人妙經
Studies and other sources (4)
  1. SylarLong and contributors, iztro 2.6.1, an open-source Zi Wei Dou Shu library (MIT licence), our test oracle; nothing of it ships. github.com/SylarLong/iztro
  2. "Zi Wei Dou Shu", English Wikipedia (orientation and the English names). en.wikipedia.org/wiki/Zi_Wei_Dou_Shu
  3. A practitioner's table of the five-phase and yin-yang attributes of the major stars, 2018 (facts only). hansyuan0715.pixnet.net/blog/posts/17238043287
  4. A practitioner's teaching page on the fourteen major stars, 2021 (facts only). 88say.com/default.aspx?uclId=doc%5Bpq%5Ddoc&id=4863
Our own research (2)
  1. EsoTerrier, Zi Wei Dou Shu research: the calculation, the schools, the conventions and the naming, 9 to 13 October 2026.
  2. EsoTerrier calculation engine, the Zi Wei Dou Shu service and its documentation.

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By EsoTerrier. Written with AI assistance from our research and checked against its sources; last revised 19 October 2026. How we write these pages.

First published ; last revised . Corrections: support@esoterrier.com.

Chinese quotations are from public-domain texts as transcribed on Chinese Wikisource (CC BY-SA 4.0); the translations and readings are EsoTerrier's own.