This is a book about man, his highest good in life, and how to attain it, man’s highest good I life being the attainment of perfection by becoming one with God. It is understood that self-realisation, perfection, supreme happiness, and man’s highest good in life are all one and the same thing. Man is the all-pervading and immortal life, the life-divine,, the God-head within the body. The realization, through personal experience, that this is so,, is knowledge.