The greatest source of tears which the saints, the desert ascetics, used is weeping for sins. It is a source out of which abundant tears spring forth, for everyone who offers a true repentance with all their heart, feeling sorry for their sins, which caused all these sufferings to their compassionate Redeemer, portraying His wound before them and His open side by the spear of their sins. Therefore, you can do nothing but weep and shed tears.

They are the tears of regret for the lost time in entertainment and the false happiness in the vain pleasures of the world.

—H.E. Metropolitan Youssef, How to Pray