A member of the royal family of Emperor Theodore I Lascaris, Saint Theodore rejected the political and religious pressure of the Latin interlopers ushered into power by the Crusaders by becoming a monk and retreating into the wilderness. After being formed in the monastic life at the Monastery of the Sleepless Ones (Akoimetoi), he took on the extreme ascesis of the wandering pilgrim, traveling most especially to the Holy Places in Palestine, Mt. Sinai, and throughout Greece. When, along the way, he settled for a time in a particular location, it was always in an inhospitable place infested with demons. There he would wage unceasing battle against the natural conditions, his flesh, and the demons which he drove away by his prayer and patient endurance. He was especially known for restoring the 7th Century Monastery of the Giromerion where he found a miraculous icon of the Theotokos Hodigitria (She who shows the way – pointing to the Christ Child) which had been preserved from the time of the Iconoclast Heresy. As the keeper of this icon of the Champion Leader and her Son, Saint Nilus was all the more terrible to the enemies of mankind who could not bear to remain in his presence.