Another method of changing body chemistry, which is extensively practised in India, is breathing exercises, all of which are intended to lead in the long run to prolonged suspensions of breath; when the breath is suspended for a very long period you get a high concentration of carbon dioxide in the blood, and empirically we know that a high concentration of carbon dioxide leads to visionary experiences. The inhalation of a mixture of carbon dioxide and oxygen will rapidly produce very peculiar mental conditions and, in some people, either recall of buried material or visions.
Then there are the direct methods of changing body chemistry which, as the historians of religion have shown, have been used at one time or another in almost all the religious traditions of the world: inducing visionary experiences by means of drugs. In the Middle East and in Greece, alcohol was freely used for this purpose—there are even references to it in the Old Testament. Many of the minor schools of the prophets, who are very much disapproved of by the other schools, were trying to use alcohol for the purpose of entering the visionary world. A great many other drugs have been used—hashish, opium, and what not—most of them extremely harmful but some of them naturally occurring drugs which open up the consciousness to the visionary experience and which appear to be relatively harmless to the physiology and not to be addictive in any way. The best known of the relatively harmless vision-inducers is the sacred mushroom of Mexico, which was described by my friend Gordon Wasson a couple of years ago in Life.
The active principle of these mushrooms, which is called psilocybin, was synthesized last year by Doctor Albert Hoffman of Switzerland, who also synthesized the extraordinary drug called lysergic acid (LSD-25). The other naturally occurring vision-inducer which has been used from time immemorial in the Southwest in this country, and whose use has now spread right up into Canada, is the peyote cactus, whose active principle, mescaline, was synthesized about thirty or forty years ago. At the present time, most experimenters in the field of exploring the remoter areas of the mind are using LSD, which can be used in incredibly small doses of as little as 0.0001 grams and will produce extraordinary visionary effects.
These are the main methods of getting at the visionary world. Now let us examine the nature of that world and see in what way it has relevance to our original question, Why are precious stones precious? When we examine the visionary world, we discover some very interesting facts. For example, visions are extremely strange, but they are not random; they obey certain laws. Every person’s vision is unique, as every person is unique, but all these unique visions seem to belong roughly to one family; they are, so to speak, members of a single species. This is brought home quite clearly by such collections of case histories as those brought together by Heinrich Klüver in his monograph on peyote, published more than twenty years ago, and by the work done by experimenters with LSD and mescaline in more recent years.
The highest common factor in the visionary experience is the experience of subjective light. This occurs in the most transcendent form of vision, the form of vision which seems to modulate, so to speak, in the full-blown mystical experience. In these highest forms of vision, the light is undifferentiated; it is what in Buddhist literature is called the ‘pure light of the void’. It is an immense white light of extraordinary power. The example with which we are all most familiar is that of St Paul on the road to Damascus when he suddenly saw this overwhelming light and at the same time heard a voice saying, ‘Saul, Saul, why persecutest thou me?’ (Acts 9:4). The effect of this subjective light was so prodigious as to leave him blinded for several days. And St Paul’s was by no means a unique case.
The Neoplatonist philosopher Plotinus had several of these profound mystical experiences in the course of his life. He tells us that they were all associated with the same tremendous light, and he uses a phrase which sums up from his own experience much of what Plato had said five hundred years earlier in regard to the ideal world. Plotinus says that everything shines in the world of pure intelligence, and in the world of sense the most beautiful thing is fire. This statement begins to throw some light on why precious stones are precious: the brilliant and luminous quality of the world of visions is somehow reflected in our world in luminous things such as fire.
Another well-known case of the experience of overpowering light is that of Mohammed. The revelation which came to him and which made him a prophet was accompanied by a light so tremendous—he was awakened out of his sleep by it—that he fell down in a faint. Nearer our own times, in the sixteenth century, we have the example of the great Catholic mystic St John of the Cross. He had attempted to reform his Order, but his fellow monks didn’t want to be reformed, and he was put in prison. While there, he had several experiences of overpowering light. In one the light was said to have been seen by his jailer, another friar of the Order. When he finally made his escape from his cell, it was by following a light which came to him and showed him the way out. A little later we find the great Protestant mystic Jacob Boehme describing experiences of the same kind, in which he was surrounded by and swallowed up in a tremendous light.
This experience of the pure light of the void is a visionary experience of what may be called the highest, the most mystical, kind. On a rather lower level the lights seem to be broken up and become, so to speak, incorporated in different objects and persons and figures. It is as though this tremendous white light were somehow refracted through a prism and broken up into different coloured lights. In this lower form of vision we have the intensification of light in some way associated with the story-telling faculty, so that there are visions of great complexity and elaboration in which light plays a tremendous part, but it is not the pure white light of the great theophanies.
As an example of how this coloured light of the lower kind of vision operates, let me cite the case of Weir Mitchell, a well-known psychologist of the end of the last century who described his experiences with peyote. What he described was first of all a vision of coloured, three-dimensional geometric forms, which became concretized in carvings and mosaics and carpets; then an enormous architectural form appeared, a great Gothic tower encrusted with what appeared to be gems of such enormous size that they looked like transparent fruits; then there were immense and magnificent landscapes, also with self-luminous objects like gems in them; and the experience ended with a vision of the ocean with the waves marvellously coloured and sparkling like jewels rolling in.
Many other people have had similar visions—the spontaneous visions of Blake, for example, were essentially of the same nature. One of the interesting facts about these visions is that when figures are seen, as they often are, they are not only extraordinarily majestic—Blake describes them as Seraphim and says they were one hundred and twenty feet high—but, when their faces are seen, they are not the faces of anybody that the subject knows or has ever known; they are presented to him by his own mind as a completely strange form.
This is, from a theological point of view, very interesting, inasmuch as the whole theology of angels is not, as many people now suppose, based on the idea that angels are the souls of the departed. Angels are a totally different species; they don’t belong to the human species at all. I think there is a real psychological basis for this theological view of the nature of angels, inasmuch as when figures are seen in visions, they are not people that we know. Whatever it is in our mind which creates these visions, it presents us with something totally novel which appears to have absolutely nothing to do with our private life, nor even with the archetypal life of humanity as a whole. It is literally another world.
There is good reason to suppose that many children have this kind of visionary experience and that they not only see visions with their eyes closed but also see the preternatural luminosity of the visionary world in the external world. This is
