This profile takes the sixth and third line positions of a hexagram, the same pair as another profile in the set but in the opposite order, and the pair is one of the three the Chinese tradition holds to correspond.
Correspondence
A hexagram is read as two stacked trigrams, and classical Yijing commentary holds a line of the lower trigram to correspond with the line in the same relative position of the upper: one with four, two with five, three with six. Human Design's six profiles whose lines are three positions apart are exactly those three relations, each taken in both orders.
The positions themselves
The sixth line is the top of the figure, past the ruling position, and is commonly read as excess or as a situation that has gone beyond its end. The third line is the top of the lower trigram, transitional, and characteristically read as difficult or exposed.
Ordered pairs
The twelve profiles are ordered, the two numbers being taken from different parts of the calculated chart, which is why six and three is a distinct profile from three and six.
The modern layer
The role names on the six lines and the reading of a pair as a personality are Ra Uru Hu's, published in 1987. Classical commentary reads lines as positions in a situation rather than as human types, and this atlas records the two layers separately.