 A human being is a composite of two substances, the body and the soul (DOS 316). The soul is the act and form of the whole (totius) human body (NLPor 8, P 38vb), and it is present wholly in every part of the body (in qualibet parte corporis tota). To be present wholly in every part does not require simplicity, as absence of composition, but spirituality (that is, immateriality) (E 6, 47–48).