Irosun is the fifth principal Odù, deeply associated with bloodline, ancestry, and hereditary knowledge. Its color is red — the red of cam-wood (osun), rubbed on the divination board. The verses of Irosun speak of obligations to those who came before and responsibilities to those who follow. Hex 37 (The Family) is wind over fire: the eldest daughter tending the hearth, the household as the basic unit of moral order. Hex 13 (Fellowship of Men) is fire over heaven: the flame visible to all, the community gathered around shared purpose. Irosun maps to both: the inner family (Hex 37) and the extended community bound by shared ancestry (Hex 13). In Yoruba thought, you are not an individual — you are the current expression of a lineage. The I-Ching agrees: Hex 37 says 'the perseverance of the woman furthers' because the family depends on continuity, not heroism.