But do not be content with just one experiment: as with everything, the senses must become accustomed to a new impression, whether it is pleasant or not, happy or sad. Nature wrestles with this divine substance, because our nature is not made for joy but clings to pain. Nature must be defeated in this struggle, reality must follow dreams; and then the dream will rule, will become the master, the dream will become life and life become a dream. What a difference is made by this transfiguration! When you compare the sorrows of real life to the pleasures of the imaginary one, you will never want to live again, only to dream for ever. When you leave your world for that of others, you will feel as if you have travelled from spring in Naples to winter in Lapland, from paradise to earth, from heaven to hell. Try some hashish, my friend! Try it!