Man and Woman were made "for each other" - not that God left them half-made and incomplete: he Created them to be a Communion of perSons, in which each can be "Helpmate" to the other, for they are equal as persons ("bone of my bones. . .") and complementary as masculine and feminine. In Marriage God unites them in such a way that, by forming "one Flesh", 245 they can transmit human life: "Be Fruitful and multiply, and fill the earth." 246 By transmitting human life to their descendants, man and woman as Spouses and Parents co-operate in a Unique way in the Creator's work. 247