The innermost spiritual sense of Orthodox Monasticism is revealed in joyful mourning. This paradoxical phrase denotes a spiritual state in which a monk in his prayer grieves for the sins of the world at at the same time experiences the regenerating spiritual joy of Christ's forgiveness and resurrection. A monk dies in order to live, he forgets himself in order to find his real self in God, he becomes ignorant of worldly knowledge in order to attain real spiritual wisdom which is given only to the humble ones.Since the early years of the Christian era, Christians have been called by Christ Himself to life in the world without being of the world (John 17:13-16). They are distinct from the world, because of their special conduct and their exemplary ethical life. When, toward the middle of the second century of the Christian era, Christian life reached a low ebb, some Christians, both men and women, reacted to this by raising their own personal standards of austere Christian life. They practiced chastity, celibacy, poverty, prayer and fasting (Justin, I Apology 15:6; Athenagoras, Apology 33; and Galenus, De Sententiis Politiae Platonicae). These people considered themselves Christians selected to live the life of angels (Matt. 22:30). They lived by themselves or in special houses as a community. At about the middle of the third century, they began fleeing the world and going to the desert, where they established permanent habitations, whether by themselves or in small groups. They are known as the "anchorites" (from anachoresis: departure, flight); the hermits (from eremos: desert); and the monastics (from monos: alone, for a monastic "lives in the presence of God alone"). A good example of an anchorite monk is Saint Anthony the Great, who fled the world [c. 285] and established himself in the desert of Middle Egypt. Many people imitated his example; they went and lived close to him, thus "populating the desert" (Troparion of St. Anthony). These monks lived by themselves in huts and small houses to form a village called "lavra" (later the concept of "lavra" develops, as we will see). St. Anthony is considered the Father of Orthodox monasticism, for his kind of monasticism, that of "living alone with God as his only companion" remained the most cherished monastic ideal for the monks of the Eastern Orthodox Church throughout the ages.