It may be that DMT makes us able to perceive what the physicist call "dark matter" - the 95 per cent of the universe's mass that is known to exist but that at present remains invisible to our senses and instruments.

My sense is that we are missing a huge part of the human story. I think it's possible, indeed probable, that we are a species with amnesia; that we've lost the record of our story going back thousands of years before so-called history began, and I think that if we could go back to that dark epoch, we would discover many astounding things about ourselves.

There are all kinds of ways to challenge ourselves. Some people do it by climbing a mountain or scuba diving. The most profound and challenging ordeals is to drink Ayahuasca. It is in a way the ultimate adventure.

People think I'm a freemason, and I'm not. People think I believe the end of the world is coming on 21 December 2012, and I don't.

All politicians should be required to drink Ayahuasca 10 times before taking office.

It may be that DMT makes us able to perceive what the physicist call "dark matter" - the 95 per cent of the universe's mass that is known to exist but that at present remains invisible to our senses and instruments.

I don't believe that consciousness is generated by the brain. I believe that the brain is more of a reciever of consciousness.