Buddhism teaches of six consciousnesses. They are the eye consciousness, ear consciousness, nose consciousness, tongue consciousness, body consciousness, and mind consciousness. Human pleasure falls under the categories of the pleasures of the six consciousnesses. Those are the pleasure of seeing, the pleasure of hearing, the pleasure of smelling, the pleasure of eating, the pleasure of touch, and the pleasure of knowing. However, no matter what beautiful scenery we may look at, the pleasure of seeing it does not last. Eventually, we grow tired of it. No matter how much we might like the music we listen to, the pleasure of hearing it does not last. No matter how sweet a fragrance we may smell, we grow used to it and no longer derive joy from it. No matter how delicious a meal may be, once we are full, that delight will end. No matter how nice a thing may feel, if that pleasurable feeling goes on for too long it becomes displeasure. No matter how serene a sense of satisfaction we may feel, that too does not last. We start to take it for granted, and it turns into dissatisfaction. All we know is the six pleasures of seeing, hearing, smelling, eating, touching, and knowing. Each one of these is as short-lived and fleeting as a dream. This shows us the truth of human happiness.