Dante Alighiere, PURGATORIO, Canto XXVIII

Illustration by Salvador Dali
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Dante wanders through the forest of the terrestrial paradise, till he is stopped by a stream, on the other side of which he beholds a fair lady, culling flowers. He speaks to her; and she, in reply, explains to him certain things touching the nature of that place, and tells that the water, which flows between them, is here called Lethe, and in another place has the name of Eunoe.