I don't need LSD. At my age every day is like a trip into the future.

LSD was an incredible experience. Not that I’m recommending it for anybody else; but for me it kind of – it hammered home to me that reality was not a fixed thing. That the reality that we saw about us every day was one reality, and a valid one – but that there were others, different perspectives where different things have meaning that were just as valid. That had a profound effect on me.

In ordinary perception, the senses send an overwhelming flood of information to the brain, which the brain then filters down to a trickle it can manage for the purpose of survival in a highly competitive world. Man has become so rational, so utilitarian, that the trickle becomes most pale and thin. It is efficient, for mere survival, but it screens out the most wondrous parts of man's potential experience without his even knowing it. We're shut off from our own world. Primitive man once experienced the rich and sparkling flood of the senses fully. Children experience it for a few months-until "normal" training, conditioning, close the doors on this other world, usually for good. Somehow, the drugs opened these ancient doors. And through them modern man may at last go, and rediscover his divine birthright...

How are you feeling, man?" he asks me.

"Great," I tell him, and it is purely the truth. Doves clatter up out of a bare tree and turn at the same instant, transforming themselves from steel to silver in the snow-blown light. I know at that moment that the drug is working. Everything before me has become suddenly, radiantly itself. How could Carlton have known this was about to happen? "Oh," I whisper. His hand settles on my shoulder.

"Stay loose, Frisco," he says. "There's not a thing in this pretty world to be afraid of. I'm here."

I am not afraid. I am astonished. I had not realized until this moment how real everything is. A twig lies on the marble at my feet, bearing a cluster of hard brown berries. The broken-off end is raw, white, fleshly. Trees are alive.

"I'm here," Carlton says again, and he is.

The truth is that Leon, like a lot of those-maybe everyone-who trips on acid, never really came back. he recovered but he was never the same guy again. He had lost something-innocence of hell. Acid presses a little button in your mind that should never be pressed

Everything was hysterically funny, even the playground slide was smiling at us, and at some point, deep in the night, when we were winging on the jungle gym and showers of sparks were flying out of our mouths, I had the epiphany that laughter was light, and light was laughter, and that this was the secret of the universe.