[Milton's] argument is (a) St. Augustine was wrong in thinking God's only purpose in giving Adam a female, instead of a male, companion, was copulation. For (b) there is a "peculiar comfort" in the society of man and woman "beside, (i.e. in addition to, apart from) the genial bed"; and (c) we know from Scripture that something analogous to "play" or "slackening the cords" occurs even in God. That is why the Song of Songs describes a thousand raptures...far on the hither side of carnal enjoyment.
C. S. Lewis