The world of imagination is the world of eternity. It is the divine bosom into which we shall all go after the death of the vegetated [i.e. mortal] body. This world of imagination is infinite and eternal, whereas the world of generation is finite and temporal. There exist in that eternal world the eternal realities of everything which we see reflected in this vegetable glass of nature.

The Works of William Blake (ed. 1893) - ISBN: 9780404089627