The powerful implication here is that God’s original intention can be consummated only by Adam’s free perception and desire. Only when Adam comes to feel the solitude of the angelic, unitary existence is he split into two separate beings. He must, in a sense, diminish himself, come to know the rightness of a more complex form of unity.  -Avivah Gottlieb Zornberg, The Beginning of Desire, p. 37