The Channel of Power joins the Sacral centre to the Spleen centre through Gates 34 and 57, and both of those numbers are borrowed. They are positions in the King Wen sequence of the I Ching, the Chinese divinatory classic whose sixty-four hexagrams Human Design maps one to one onto the sixty-four gates of its bodygraph. Read as I Ching rather than as Human Design, the two numbers name two independent oracle texts.
Hexagram 34, Great Power (Da Zhuang). Thunder mounting above heaven. It is great vigour, and its whole counsel is that power parts from greatness the moment it parts from what is right.
Hexagram 57, The Gentle (Xun). Wind doubled. It is penetration by what is gentle and continuous, the effect won by repetition that force cannot win at all.
The I Ching itself never sets these two hexagrams in a pair. Each stands alone in the sequence, consulted about a changing situation and answered in counsel that passes. The pairing is a construction of Ra Uru Hu's system, published from 1987, which fixes each hexagram to a position in a birth chart and reads the joined pair as a lasting trait of the person. The correspondence of number is real, and both hexagrams can be followed into their own entries in this atlas; the pairing, and the character read out of it, belong to the modern system alone.