The Channel of Initiation joins the G/Identity centre to the Heart/Ego/Will centre through Gates 25 and 51, 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 25, Innocence (Wu Wang). Thunder rolling beneath heaven. It is the unexpected, action without ulterior design, and its warning is exact: what departs from the natural course invites misfortune.
Hexagram 51, The Arousing (Zhen). Thunder doubled. Shock spreads terror for a hundred miles, and the test of the superior person is that the sacrificial ladle is not dropped.
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.