The difference between you and her (whom I to you did once...

The difference between you and her (whom I to you did once prefer) Is clear enough to settle: She like a diamond shone, but you Shine like an early drop of dew Poised on a red rose petal. The dew-drop carries in its eye Mountain and forest, sea and sky, With every change of weather; Contrariwise, a diamond splits The prospect into idle bits That none can piece together.