The Great Epic of the Bhārata dynasty 12.318.22

12.318.22

nirdagdhaṃ paradehena paradehaṃ calācalam |
vinaśyantaṃ vināśānte nāvi nāvamivāhitam || 22 ||

Some person again, who fears the birth of an embryo as one fears a snake of virulent poison, finds a long-lived son born unto him and who seems to be his own self come back to the stages through which he has passed. Many persons with ardent longing for offspring and cheerless on that account, after sacrificing to many deities and undergoing severe austerities, at last beget children, duly borne for ten long months (in the wombs of their spouses), that prove to be veritable wretches of their race. Others, who have been obtained through virtue of such blessed rites and observances, at once obtain wealth and grain and diverse other sources of enjoyment earned and stored by their sires. In an act of congress, when two persons of opposite sexes come into contact with one another, the embryo takes birth in the womb, like a calamity afflicting the mother. Very soon after the suspension of the vital breaths, other physical forms possess that embodied creature whose gross body has been destroyed but whose acts have all been performed with that gross body made of flesh and phlegm. Upon the dissolution of the body, another body, which is as much destructible as the one that is destroyed, is kept ready for the burnt and destroyed creature (to migrate into) even as one boat goes to another for transferring to itself the passengers of the other. In consequence of an act of congress, a drop of the vital seed, that is inanimate, is cast into the womb.