Physiology and psychology cover, between them, the field of vital phenomena; they deal with the facts of life at large, and in particular with the facts of human life.
Bio: Sivaya Subramuniyaswami, also known as Gurudeva by his followers, was born in Oakland, California and adopted Saivism as a young man. He traveled to India and Sri Lanka where he received initiation from Yogaswami of Jaffna in 1949.