The Hindu Fall

Thus, it is said that Siva, as the Supreme Being, desired to tempt Brahmá (who had taken human form), and for this object he dropped from heaven a blossom of the sacred g-tree. Brahmá, instigated by his wife, Satarupa, endeavors to obtain this blossom, thinking its possession will render him immortal and divine; but when he has succeeded in doing so, he is cursed by Siva, and doomed to misery and degradation. Mr. Hardwicke, when commenting on this tradition, adds that the sacred Indian g is endowed by the Brahmans and Buddhists with mysterious significance, as the tree of knowledge or intelligence.

Westropp, Hodder M. and C. Staniland Wake, Ancient symbol worship: Influence of the phallic idea in the religions of antiquity, New York: J. W. Bouton, 1874, pp. 46-47.