"... Again, those males Into the surging channels of whose years Now first has passed the seed (engendered Within their members by the ripened days) Are in their sleep confronted from without By idol-images of some fair form— Tidings of glorious face and lovely bloom, Which stir and goad the regions turgid now With seed abundant; so that, as it were With all the matter acted duly out, They pour the billows of a potent stream And stain their garment."