TL;DR: The Táng Thư (also called the Táng Kinh, traditionally attributed to Guo Pu) says that burial relies on living qi; when qi meets wind it scatters, when it meets a water boundary it stops, and the ancients made qi gather and gave it somewhere to stop, which is why it is called phong thủy. The book sets out a clear order: obtaining water comes first, storing wind comes after. According to the book, the qi of yin and yang breathes out as wind, moves within the earth as living qi, and travels along the forms of mountains and terrain.
What is the Táng Thư and why is it cited when discussing the term feng shui?
The Táng Thư (葬書, Burial Book) is an old text on the art of choosing burial land; the transmitted edition bears the name of Quách Phác (Guo Pu) of the Jin dynasty, and later practitioners who revered it renamed it the Táng Kinh (Classic of Burial), so the two titles refer to one and the same book[2]. The two sentences usually cited as the original definition of feng shui both stand in its Inner Chapters. The opening line reads "葬者乘生氣也" (Táng giả thừa sinh khí dã): burial is riding the sinh khí (life qi). The second passage, whose first half the book introduces as a quotation from an older classic (經曰), reads "氣乘風則散，界水則止。古人聚之使不散，行之使有止，故謂之風水" (Khí thừa phong tắc tán, giới thủy tắc chỉ. Cổ nhân tụ chi sử bất tán, hành chi sử hữu chỉ, cố vị chi phong thủy): qi scatters when it rides the wind and stops when bounded by water; the ancients gathered it so that it would not scatter and gave moving qi a place to stop, hence the name feng shui, wind and water[2]. Trương Thị Thúy Hà's 2016 article in the journal *Nghiên cứu Tôn giáo* (Religious Studies Review) also cites these two sentences, but gives them as coming from two books, the Táng thư and the Táng Kinh[1].
On authorship: the Siku quanshu catalogue abstract, reproduced at the head of the Wikisource text, notes that the old edition is inscribed "composed by Quách Phác of the Jin", but observes that his biography does not say he ever wrote a Táng Thư, that the Tang bibliography lists works titled Táng Thư without attributing them to him, and that only the bibliographic treatise of the Song History records a Táng Thư in one scroll by Quách Phác; the abstract concludes that to insist the book came from his hand "has nothing to substantiate it" (無可徵信)[2]. The transmitted text is divided into Inner, Outer and Miscellaneous Chapters following the arrangement of Ngô Trừng (Wu Cheng) of the Yuan, after Thái Nguyên Định (Cai Yuanding) of the Song had cut a twenty-chapter version down to eight[2]. What this article discusses is what that theoretical system says, not whether it is physically correct.
What does the Táng Thư say about qi, wind, and water?
The Inner Chapters say that the qi of yin and yang "when exhaled becomes wind (噫而為風), rising becomes cloud, descending becomes rain, and moving within the earth is sinh khí (行乎地中而為生氣)"[2]. In the book's view, wind and sinh khí are two forms of the same qi of yin and yang. The text goes on to say that qi moving within the earth follows the momentum of the land and gathers where that momentum stops (其行也因地之勢，其聚也因勢之止)[2].
From this premise the book reduces the choice of land to gathering and stopping: making qi gather so that it does not scatter, and giving moving qi a place to stop[2]. The commentary printed with this edition explains that sinh khí flows along ridges and spurs and cannot be stopped unless bounded by water, and that once it stops the site must be enclosed on all sides like a complete city wall before wind can be kept out and the qi kept from dispersing[2].
Water is what holds qi in place: qi "giới thủy tắc chỉ", stops when bounded by water. The book states the ranking of the two plainly: "風水之法，得水為上，藏風次之" (Phong thủy chi pháp, đắc thủy vi thượng, tàng phong thứ chi), in the method of feng shui, obtaining water comes first and storing against wind comes second[2].
Where do mountains stand in the Táng Thư's theory?
The two words feng shui name only wind and water, yet most of the Táng Thư is about the lie of the land and of the mountains. The book says "丘壟之骨，岡阜之支，氣之所隨": the bones of the ridges and the spurs of the hills are what qi follows; "地勢原脈，山勢原骨": the lie of the land is traced in its veins, that of the mountains in their bones; and "勢來形止，是謂全氣": where the momentum arrives and the form comes to rest, that is called complete qi[2]. In the book, mountains and hills are the path qi travels; wind and water decide whether it scatters or stops.
Table comparing the role of each factor in Táng Thư theory
| Element | Sentence in the Táng Thư | Meaning |
|---|---|---|
| Qi (sinh khí) | 葬者乘生氣也；行乎地中而為生氣 | Burial is riding the sinh khí; the qi of yin and yang moving within the earth is sinh khí |
| Phong (wind) | 噫而為風；氣乘風則散 | The qi of yin and yang exhaled becomes wind; qi riding the wind scatters |
| Thủy (water) | 界水則止；得水為上，藏風次之 | Qi bounded by water stops; obtaining water comes first, storing against wind second |
| Sơn (mountains, hills) | 丘壟之骨，岡阜之支，氣之所隨 | The bones of the ridges and the spurs of the hills are what qi follows |
The table above gives sentences from the Inner Chapters of the Táng Thư, following the Chinese Wikisource text[2].
The origin of the term feng shui is tied to choosing burial land, not only dwellings
Two layers of meaning should be distinguished. The first is the narrow sense in the Táng Thư: qi scatters upon meeting wind and stops upon meeting water, so one must make qi gather, and that is called feng shui[2]. The second is the extended sense: the two words also denote the method of seeking and choosing a dwelling or burial place that is auspicious, prosperous, long-lived, and peaceful, that is, the art of feng shui[1].
In a research article published in the journal *Nghiên cứu Tôn giáo* (Religious Studies Review) in 2016, Trương Thị Thúy Hà also restated this common understanding: feng shui is the field specializing in the effects of wind direction, qi direction, and water veins on human life, in which phong refers to energy currents circulating in nature or the phenomenon of moving air, while thủy denotes terrain[1]. According to the author, feng shui is not a single factor but a synthesis of many factors concerning the terrain and topography around houses, villages, cities, or graves, together with wind direction, water flow, orientation, shape, and layout of the built space[1].
A notable point is that the original definition in the Táng Thư is tied to graves, that is, yin dwellings, and did not start from houses. Application to houses, villages, and cities is a later extension. Trương Thị Thúy Hà's research examines precisely that extension in contemporary Vietnamese urban life, as residents of new urban areas in Hanoi apply feng shui to choosing orientation and arranging houses[1].
When does the Táng Thư stress storing against wind?
The commentary in this edition distinguishes two kinds of land. On high ridges, sinh khí floats exposed and fears wind most, being easily blown apart, so one must seek a place enclosed like a complete city wall for the qi to gather. On level ground, sinh khí lies sunk and hidden and does not fear the wind, so openness is no defect; it is enough to have water lying across to make the qi stop[2]. The Outer Chapters of the book also say that blowing wind can scatter sinh khí, and that the dragon and tiger hills are there to guard the site (夫噫氣能散生氣，龍虎所以衛區穴)[2].
Where do the schools disagree?
One point should be stated clearly to avoid misunderstanding: the Táng Thư does not belong to a single school. The abstract at the head of the book quotes the work Thanh nham tùng lục (青岩叢錄): later practitioners of the art of choosing land divided into two lineages. One, called the method of the ancestral temple, began in Min (Fujian) and bases its doctrine on stars and trigrams, using the eight trigrams and five stars to fix the principles of generation and control. The other, the Jiangxi method, began with Dương Quân Tùng of Gan and bases its doctrine on form and configuration, tracing where qi arises and where it stops, and speaking only of dragon, site, sand and water. The two lineages differ, but both trace their origin to the book of Quách Phác[2].
Is qi in feng shui the same as air?
This is a common question. The word qi in the Táng Thư cannot be translated directly as air. When the book says that the qi of yin and yang is exhaled as wind, rises as cloud, descends as rain, and moving within the earth is sinh khí, it is speaking within the framework of yin-yang and five-phase cosmology, where qi is the basic material of all things[2]. The book also says "夫土者氣之體，有土斯有氣；氣者水之母，有氣斯有水": earth is the body of qi, where there is earth there is qi; qi is the mother of water, where there is qi there is water[2].
What attitude should one take when reading the Táng Thư today?
Nhat Nguyet's suggestion: the Táng Thư should be read as a theoretical text of a tradition, to understand how the ancients reasoned about land, water, wind, and life, not as a verified technical manual. The most practical lesson it leaves may lie elsewhere: carefully observing wind direction, water flow, humidity, and terrain around one's dwelling is a good habit, and it partially coincides with what modern architecture and climatology also consider, though for entirely different reasons.
For students of feng shui, understanding the Táng Thư correctly also helps avoid two extremes. One is mystifying it, turning sinh khí into a supernatural thing that intervenes in human fate. The other is rejecting it outright, treating the whole system as meaningless, ignoring that it is a theoretical tradition with its own internal logic and real influence on how people build living spaces in many Asian countries, including Vietnam[1].
The reasonable reading lies in between: acknowledge that the Táng Thư defined the two words feng shui from a conception of qi, wind, and water, and also acknowledge that this conception is a product of its time, not a verified truth. When someone says "the Táng Thư teaches that...", the question to ask is where the Táng Thư says that, in which translation, and how the translator understood it, because the Siku quanshu abstract already records that the twenty-chapter version once in circulation contained much that later hands had added[2].
