Every Orthodox Christian in the Sacrament of Holy Baptism renounces the devil and all his works. But then, due to his own weakness and because of the constant attack on us by the enemies of our salvation, he sins. The book “Invisible Warfare,” written by the famous Athonite ascetic St. Nicodemus the Holy Mountain and translated from Greek by St. Theophan the Recluse, not only talks about the machinations of demons, their craftiness and methods of attacking us, but also teaches how to recognize these machinations and resist them . According to Nicodemus the Holy Mountain himself, with this book “every person who desires salvation learns how to defeat his invisible enemies in order to acquire the treasures of true and divine virtues, and for this receive an incorruptible crown and an eternal pledge, which is unity with God in the present age.” and in the future."