how? How could anyone, even sophisticated Western botanists, have found the perfect ingredients without spending decades - perhaps even centuries - on trial and error? How can the ‘primitive’ Amazonian natives have known the properties of these two plants? After all, the odds against them coming up with this combination by accident are truly astronomical. As Narby writes:
So here are people without electron microscopes who choose, among some 80,000 Amazonian plant species, the leaves of a bush containing a hallucinogenic brain hormone, which they combine with a vine containing substances that inactivate an enzyme of the digestive tract, which would otherwise block the hallucinogenic effect. And they do this to modify their consciousness.
It is as if they knew about the molecular properties of plants and the art of combining them, and when one asks them how they know these things, they say their knowledge comes directly from hallucinogenic plants. 1
Another example given by Narby is that of curare. 2 This powerful nerve poison is another ‘made-to-order’ drug, whose ingredients this time come from several different plants and fit a very precise set of requirements. As Narby points out, the natives needed a substance that, when smeared on the tips of blowpipe darts, would not only kill the animal but also ensure that it would fall to the ground. Tree monkeys, for example, if shot with an unpoisoned arrow, often tighten their grip on the branches with a reflex action and so die out of reach of the hunter. The meat itself would, of course, have to be free from poison and safe to eat. It seemed like a very tall order, but curare fits all these requirements: it is a muscle relaxant (killing by arresting the respiratory muscles); it is only effective when injected into the bloodstream - hence its delivery by blowpipe; and it has no effect when taken orally.
The invention of curare is a truly astounding thing. The most common type requires a complex method of preparation in which several plants are boiled for three days, during which lethal fumes are produced. And the final result needs a specific piece of technology - the blowpipe - to deliver it. How was all this discovered in the first place?
The problem becomes even more baffling when it is realised that forty different types of curare are used across the Amazon rain forest, all with the same properties but each using slightly different ingredients as the same plants do not grow in every region. Therefore, in effect, curare was invented forty times. The Western world only learned of it in the 1940s, when it first began to be used as a muscle relaxant during surgery.
The Amazonians themselves do not claim to have invented curare, but that it was given to them by the spirits, through their shamans.
These are just two examples from a vast range of vegetable mixtures used by the peoples of the Amazon, the full extent of which has not yet been catalogued by modern botanists. Realising that it was nonsense to suggest that these complex recipes could have been achieved by experimentation, Narby began to ask local people and shamans how they had acquired this knowledge. They told him that the properties of plants and the recipes for combining them are given directly to the shaman by very powerful spirit entities while he is in ecstatic trance under the influence of hallucinogens such as ayahuasca. (Of course this raises a fascinating chicken-and-egg type of problem. If the shamans discovered the secret properties of ayahuasca only by ingesting it, how did they know about them in the first place?)
This realisation led Narby on to his own personal quest to research this neglected aspect of shamanism, which included taking ayahuasca himself. Many anthropologists before Narby had recorded the claim that the shaman obtains knowledge by the ingestion of hallucinogens, but none had ever taken this seriously enough to follow it up. He found that this was a shared feature of
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