Ever since the first couple of times I'd smoked it, in my early 20s, I had always maintained a great interest in heroin. I'd sort of fallen in love with the warmth of it - the way it felt like crawling back into the womb. Heroin delivered. LSD does a bit, especially when all the things that are familiar to you peel away and you suddenly realise the fragility of how you normally see the world. Marijuana doesn't really, although it's a laugh for a while (I say that having smoked it constantly for a decade). Alcohol makes you sick and gives you a headache. Crack is like inhaling plastic, but so brief and flimsy and brittle as a high. Normal cocaine just makes you nervous, amphetamines are even worse, and ecstasy never really agreed with me. But heroin gets the job done.
All of us, I think, have a vague idea that we're missing something. Some say that thing is God; that all the longing we feel - be it for a lover, or a football team, or a drug - is merely an inappropriate substitute for the longing we're supposed to feel for God, for oneness, for truth. And what heroin does really successfully is objectify that need.
It makes you feel lovely and warm and cosy. It gives you a great big smacky cuddle, and from then on the idea of need is no longer an abstract thing, but a longing in your belly and a kicking in your legs and a shivering in your arms and sweat on your forehead and a dull pallor on your face. At this point, you're no longer under any misapprehension about what it is that you need: you don't think, "Nice to have a girlfriend, read a poem, or ride a bike," you think, "Fuck, I need heroin."