Grass, booze, hash, speed, crack, heroin, TV, shopping, sex... Whatever your drug of choice is, have loads of it.
People take drugs to change the way they feel, they look for the deep sense of satisfaction that the drug seems to bring. At first it all looks rosey, but after a while the effects start to wear off. The warm rosey glow is now just a normal part of life - and this is where you get the chance to develop some misery!