Pleasure comes into being through four stages - perception, sensation, contact and desire. I see a beautiful motor car, say; then I get a sensation, a reaction, from looking at it; then I touch it or imagine touching it, and then there is the desire to own and show myself off in it. Or I see a lovely cloud, or a mountain clear against the sky, or a leaf that has just come in springtime, or a deep valley full of loveliness and splendor, or a glorious sunset, or a beautiful face, intelligent, alive, not self-conscious and therefore no longer beautiful. I look at these things with intense delight and as I observe them there is no observer but only sheer beauty like love. For a moment I am absent with all my problems, anxieties and miseries - there is only that marvellous thing. I can look at it with joy and the next moment forget it, or else the mind steps in, and then the problem begins; my mind thinks over what it has seen and thinks how beautiful it was; I tell myself I should like to see it again many times. Thought begins to compare, judge, and say `l must have it again tomorrow'. The continuity of an experience that has given delight for a second is sustained by thought.
It is the same with sexual desire or any other form of desire. There is nothing wrong with desire. To react is perfectly normal. If you stick a pin in me I shall react unless I am paralysed. But then thought steps in and chews over the delight and turns it into pleasure. Thought wants to repeat the experience, and the more you repeat, the more mechanical it becomes; the more you think about it, the more strength thought gives to pleasure. So thought creates and sustains pleasure through desire, and gives it continuity, and therefore the natural reaction of desire to any beautiful thing is perverted by thought. Thought turns it into a memory and memory is then nourished by thinking about it over and over again.