William Blake and his Illustrations to The Divine Comedy in Ideas of Good and Evil by William Butler Yeats.

“He strove to embody more subtle raptures, more elaborate intuitions than any before him; his imagination and technique are more broken and strained under a great burden than the imagination and technique of any other master.” [via]

Consider also:

  1. “All in this great series are in some measure powerful and moving, and not, as it is customary to say of the work of Blake, because a flaming imagination pierces through a cloudy and indecisive technique, but because they have the only excellence possible in any art, a mastery over artistic expression.”
  2. “In the illustrations of Purgatory there is a serene beauty, and one finds his Dante and Virgil climbing among the rough rocks under a cloudy sun, and in their sleep upon the smooth steps towards the summit, a placid, marmoreal, tender, starry rapture.”
  3. “Ideas cannot be given but in their minutely appropriate words, nor can a design be made without its minutely appropriate execution.”
  4. “Blake represented the shapes of beauty haunting our moments of inspiration: shapes held by most for the frailest of ephemera, but by him for a people older than the world, citizens of eternity, appearing and reappearing in the minds of artists and of poets, creating all we touch and see by casting distorted images of themselves upon ‘the vegetable glass of nature’; and because beings, none the less symbols, blossoms, as it were, growing from invisible immortal roots, hands, as it were, pointing the way into some divine labyrinth.”
  5. “If ‘the world of imagination’ was ‘the world of eternity,’ as this doctrine implied, it was of less importance to know men and nature than to distinguish the beings and substances of imagination from those of a more perishable kind, created by the phantasy, in uninspired moments, out of memory and whim”