Afterword

Return to the table described at the very start of this article: two mutually exclusive fengshui books, laid side by side—which one should the reader believe$9 Having worked through all thirteen chapters, this article's answer is now clear: the question itself was the wrong one to ask. The principle-and-qi school is not a single doctrine awaiting a verdict of true or false, but a modeling tradition stretching across two thousand years: from the Han dynasty's Five Tones and surname-suitability to the Qing dynasty's Xuankong Flying Star, generation after generation of practitioners, sharing the common conviction that "qi can be computed through a symbolic system," have repeatedly modeled the fortune and misfortune of the dwelling space using whatever symbolic tools were most refined and ready to hand at the time (the Five Tones, trigram cases, the stems and branches, the River Chart and Luo Writing, the flying stars, the sixty-four hexagrams). These models share the very same metaphysical premise, yet diverge sharply in their variables, their axioms, and their operations; none has ever been verified, and none has ever been falsified; they coexist in mutual exclusion, each accumulating its own classics, commentaries, case records, and market.

This article's final characterization of the principle-and-qi school therefore comes down to three statements. As a system for calculating fortune and misfortune, its various models are incommensurable with one another and admit of no test; there is no "true formula" among them that can be adjudicated. As a cultural construction, it is the largest and most intricate applied engineering project built upon Chinese symbolic cosmology, and every ring of graduation on the compass is a stratum in the history of thought. As a social practice, it has, for two thousand years, continuously supplied meaning, norms, and explanation for how Chinese people organize their spatial behavior, and this function has continued operating right up to the present, entirely independent of whether its calculations are true.

Much remains unfinished in this article: the operative details of each school have only been sketched in outline (any single school, spelled out in full, would fill a monograph of its own); yin-dwelling burial methods, the date-selection system, and the lateral connections between fengshui and other numerological arts such as Chinese medicine and fate calculation have all been noted only in passing; and the living fengshui practice found in contemporary fieldwork—oral testimony, house-judgment case files, the living ecology of master-to-disciple transmission—lies still further beyond what a literature survey of this kind can reach. These gaps are left for future dedicated articles, and for whichever readers feel called to take them up.