In the book of the famous Russian psychologist Professor Rada Granovskaya, faith is seen as the support of human aspirations and needs. The influence of world religions on the formation of human psychology is shown, the deep connections between the power of faith and human development are revealed. The influence of faith on the worldview, mental health and ethics of modern man is analyzed. Extensive materials accumulated by world religions, historical and religious, dedicated to the founders and canons of various faiths, international and domestic experience in the field of general psychology were used. The second edition of the monograph (the previous one was published in 2004) has been revised. For psychologists, teachers, philosophers and students of specialized faculties of higher educational institutions.