"Concerning the sorrow which you have in your soul because of your sins, it is good and beneficial. Only when it leads you to despair, then it is clearly demonic. Immediately turn toward hope and say: 'Since I repent for everything, I hope that everything I have done is forgiven. There is no sin which surpasses the compassion of God. However great the sins may be, when they come to repentance they are dissolved. Oh, the depth of the humility, forbearance, and compassion of the Lord!'"
-Elder Ephraim of Philotheou, Counsels from the Holy Mountain