Our society values alert, problem-solving consciousness, and it devalues all other states of consciousness. Any kind of consciousness that is not related to the production or consumption of material goods is stigmatized in our society today. Of course we accept drunkenness. We allow people some brief respite from the material grind. A society that subscribes to that model is a society that is going to condemn the states of consciousness that have nothing to do with the alert problem-solving mentality.

I think it's obvious that the psychedelics are demonized and illegalized by our society because somewhere in our society are controlling minds that realize that these substances have the potential, have the power to unpick the controlling hierarchy.

We live in a society that will send us to prison if we make use of time-honored sacred plants to explore our own consciousness. Yet surely the exploration and expansion of the miracle of our consciousness is the essence of what it is to be human? By demonstrating and persecuting whole areas of consciousness, we may be denying ourselves the next vital step in our own evolution.

Any kind of consciousness that is not related to the production or consumption of material goods is stigmatized in our society today.

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.

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.

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.