When they saw that the evil inclination for idol worship was delivered into their hands as they requested, the Sages said: Since it is an auspicious time, let us pray also concerning the evil inclination for sin in the area of sexual relationships. They prayed, and it was also delivered into their hands.
Zechariah the prophet said to them: See and understand that if you kill this evil inclination the world will be destroyed because as a result there will also no longer be any desire to procreate. They followed his warning, and instead of killing the evil inclination they imprisoned it for three days. At that time, people searched for a fresh egg throughout all of Eretz Yisrael and could not find one. Since the inclination to reproduce was quashed, the chickens stopped laying eggs. They said: What should we do? If we kill it, the world will be destroyed. If we pray for half, i.e., that only half its power be annulled, nothing will be achieved because Heaven does not grant half gifts, only whole gifts. What did they do? They gouged out its eyes, effectively limiting its power, and set it free. And this was effective to the extent that a person is no longer aroused to commit incest with his close relatives.