"The two Taoists reminded Saihung that the critical thing in life was to die a spiritual death, to merge with the Void. In order to do so, one had to be free of the cycle of reincarnation. This meant absolutely no earthly ties. The important point was that having children automatically tied one to the circle of reincarnation. How could it be otherwise? By passing on one's metaphysical and physical genetics, one perpetuated one's earthly karma. This was why the sages had no biological children."