IV.
Peak hath a cave, whose narrow entries find Large rooms within where drops distil amain: Till knit with cold, though there unknown remain, Deck that poor place with alabaster lined.
Mine eyes the strait, the roomy cave, my mind; Whose cloudy thoughts let fall an inward rain Of sorrow’s drops, till colder reason bind Their running fall into a constant vein Of truth, far more than alabaster pure, Which, though despised, yet still doth truth endure.