In the letters of Blake, there is one where he wrote to the Reverend Trusler - the Reverend Dr. Trusler, who had criticized him for his works, and said to Blake, "You need someone to elucidate your works." So, Blake wrote him and said, "You ought to know that what can be made explicit to the idiot is not worth my care. And the wisest of the Ancients considered what was not too explicit the fittest for instruction, 'because it rouses the faculties to act.'" Then he went on to say to this Reverend, "Why is the Bible more instructive and entertaining than any book in the world? Is it not because it is addressed to the imagination, which is spiritual sensation, and only but mediately to the understanding or reason?"