Friedrich Rückert was a German poet, translator, and professor of Oriental languages.
Heaven has shed a tear that meant to lose itself in the sea; but the mussel came and locked it in: you shall now be my pearl. You should not fear the waves; I will carry you peacefully through. O you my pain, you my joy, you tear of heaven in my bosom! Heaven grant that with a pure soul I may guard the purest of your drops.