Dante Alighiere, PURGATORIO, Canto XVIII

Illustration by Salvador Dali
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Virgil discourses further concerning the nature of love. Then a multitude of spirits rush by; two of whom in van of the rest, record instances of zeal and fervent affection, and another; who was abbot of San Zeno in Verona, declares himself to Virgil and Dante; and lastly follow other spirits, shouting forth memorable examples of the sin for which they suffer. The Poet, pursuing his meditations, falls into a dreamy slumber.