 From there, Wolff argues that the necessary being must also be independent, or have its sufficient reason in itself, and cannot have a beginning or end in time or is eternal. As such, the necessary being cannot be identified with the world (which is composite) or anything within it (since these have a beginning and end); moreover, it cannot be identified with the soul since unlike the soul it does not depend on the world. Therefore, the necessary being is identified as God, understood as an independent being in which the reason for the actuality of the world and the soul is found (NT: I, §67, see Corr 1973).