In this material world one only sees that one lives on food, that one eats, that one needs air and water, and one does not see any other source of life; but in reality all these things which sustain man's body only sustain the garb which is earthly. Its real sustenance is different and belongs to the source from whence it comes and to which it is attached. It is thence that man draws all strength, vitality, and illumination every moment of his life. Therefore the proper name for God is "origin." The word "God" is related to the Arabic Djod, which has this meaning. When man neglects the knowledge of self and of God, and only knows about the garb he wears, he does not know about himself. Whatever his learning and qualifications may be, they all pertain to the garb which he is wearing, but it is through the understanding of the spirit and the soul that man really acquires the knowledge of the self and of God.