You forget what it was like. You'd swear on your life you never will, but year by year it falls away. How your temperature ran off the mercury, your heart galloped flat-out and never needed to rest, everything was pitched on the edge of shattering glass. How wanting something was like dying of thirst. How your skin was too fine to keep out any of the million things flooding by; every color boiled bright enough to scald you, any second of any day could send you soaring or rip you to bloody shreds.

I've got this theory that human beings are innately religious; we have a belief system. It doesn't have to be a theist form, necessarily. But we need a belief system, some framework on which to hang our behavior.

I am not good at noticing when I'm happy, except in retrospect. My gift, or fatal flaw, is for nostalgia. I have sometimes been accused of demanding perfection, of rejecting heart's desires as soon as I get close enough that the mysterious impressionistic gloss disperses into plain solid dots, but the truth is less simplistic than that. I know very well that perfection is made up of frayed, off-struck mundanities. I suppose you could say my real weakness is a kind of long-sightedness: usually it is only at a distance, and much too late, that I can see the pattern.

It took my breath away, that evening. If you've ever dreamed that you walked into your best-loved book or film or TV program, then maybe you've got some idea how it felt: things coming alive around you, strange and new and utterly familiar at the same time; the catch in your heartbeat as you move through the rooms that had such a vivid untouchable life in your mind, as your feet actually touch the carpet, as you breathe the air; the odd, secret glow of warmth as these people you've been watching for so long, from so far away, open their circle and sweep you into it.

One of my da's tragedies was always the fact that he was bright enough to understand just how comprehensively he had shat all over his life.

I weaned myself on the nostalgia equivalent of methadone (less addictive, less obvious, less likely to make you crazy): missing what I had never had.

Here's a little tip for you. If you don't like being called a murderer, don't kill people.