The reason, and by the reason he [Blake] meant deductions from the observations of the senses, binds us to mortality because it binds us to the senses, and divides us from each other by showing us our clashing interests; but imagination divides us from mortality by the immortality of beauty, and binds us to each other by opening the secret doors of all hearts. He cried again and again that everything that lives is holy, and that nothing is unholy except things that do not live—lethargies, and cruelties, and timidities, and that denial of imagination which is the root they grew from in old times. Passions, because most living, are most holy—and this was a scandalous paradox in his time—and man shall enter eternity borne upon their wings.

William Butler Yeats, “William Blake and the Imagination”