"___: The Watercourse Way" (Alan Watts book) (3)

I believe the answer is:

tao

(Other definitions for tao that I've seen before include "religious way" , "Philosophical principle, the way" , "In China, code of behaviour in harmony with natural order" , "Universal principle of Chinese philosophy" , "Source of existence (Chinese)" .)

I've seen this clue in The New York Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.