Rarely did that troubled, brilliant man dream as brightly as when he dreamt of Celephaïs. If you have visited the Lands of Dream via the windows that I helped create, you will have found echoes of this dream; you will have heard, even if you do not remember it, of the Valley of Ooth-Nargai and the Cerenarian Sea.
Young Howard, incidentally, much later learned to let go of the hateful illusions that mar some of his writings, and became a friend of famed magician/inventor Old Man Bill.