Each of the three divine persons is fully God, has a distinct existence of his own yet is not who he is apart from his relation to the other persons. Unlike human persons, for whom relations are "accidents" that either may or may not be, we cannot think of the divine persons apart from their communicative relations. God is love because his being is a dynamic communion (persons-in-relatedness) and because God communicates himself as love in three ways (persons-in-distinctness). The former aspect marks the definitive difference between the Creator and creature. Unlike human persons, the life of Father, Son, and Spirit is one of eternal mutual indwelling. The three persons interpenetrate one another in a way that is unique to the divine being: one cannot understand divine personhood by deriving it from some generic concept of personhood.