Mystics of many countries and many centuries have spoken of this memory...' And he defines the real danger of this 'lunar knowledge': 'It is perhaps well that so few believe in it, for if many did many would go out of parliaments and universities and libraries and run into the wilderness to so waste the body, and to so hush the unquiet mind that, still living, they might pass the doors the dead pass daily; for who among the wise would trouble himself with making laws or in writing history or in weighing the earth if the things of eternity seemed ready to hand?' Aldous Huxley makes the same point in speaking of the effects of mescalin in The Doors of Perception: that in a world in which everyone took psychedelics there would be no wars, but no civilisation either.