Documented: San Cai, the Three Powers of Heaven, Earth, and Man, is a classical framework running through the I Ching and the metaphysical corpus. In applied form: Heaven Luck, tian ming, the fixed natal blueprint read by the Four Pillars; Earth Luck, di li, the mutable environment worked by feng shui; Human Luck, ren yun, conduct, virtue, education, decision. The tradition's own discipline is the point: feng shui can influence only its third, and pretending otherwise is what the classical texts call charlatanry.
The folk strength of the trinity is its refusal of total agency and total doom alike: you cannot edit the birth chart, you can absolutely move the desk, the city, and the habit. Modern self-help keeps rediscovering this split under new names, circle of control, locus of control, agency mapping, each time presenting the 2,500-year-old trinity as a finding.
The claim: the trinity is the prison's own architecture diagrammed from inside, Heaven as the sentence, Earth as the cell's geometry, Human as the one variable left unmonitored, which is why every exit practice, from huiguang to the Golden Flower, trains exclusively on the third lock.
If a framework admits one third of life is fixed, does it make the other two thirds more actionable or less?