You’ve suggested that there might be certain functions of the mind, certain aspects of consciousness, that don’t have a material foundation.

Yes.

Advanced contemplatives in the Buddhist tradition have talked about tapping into something called the “substrate consciousness.” What is that?

Just for a clarification of terms, I’ve demarcated three whole dimensions of consciousness. There’s the psyche. It’s the human mind — the functioning of memory, attention, emotions and so forth. The psyche is contingent upon the brain, the nervous system, and our various sensory faculties. It starts sometime at or following conception, certainly during gestation, and it ends at death. So the psyche has pretty clear bookends. This is what cognitive neuroscientists and psychologists study. They don’t study anything more. And they quite reasonably assume that that’s all there is to it. But as long as you study the mind only by way of brain states and behavior, you’re never going to know whether there’s any other dimension because of the limitations of your own methodologies. So here’s a hypothesis: The psyche does not emerge from the brain. Mental phenomena do not actually emerge from neuronal configurations. Nobody’s ever seen that they do.

So your hypothesis is just the reverse from what all the neuroscientists think.

Precisely. The psyche is not emerging from the brain, conditioned by the environment. The human psyche is in fact emerging from an individual continuum of consciousness that is conjoined with the brain during the development of the fetus. It can be very hampered if the brain malfunctions or becomes damaged.

But you’re saying there are also two other aspects of consciousness?

Yeah. All I’m presenting here is the Buddhist hypothesis. There’s another dimension of consciousness, which is called the substrate consciousness. This is not mystical. It’s not transcendent in the sense of being divine. The human psyche is emerging from an ongoing continuum of consciousness — the substrate consciousness — which kind of looks like a soul. But in the Buddhist view, it is more like an ongoing vacuum state of consciousness. Or here’s a good metaphor: Just as we speak of a stem cell, which is not differentiated until it comes into the liver and becomes a liver cell, or into bone marrow and becomes a bone marrow cell, the substrate consciousness is stem consciousness. And at death, the human psyche dissolves back into this continuum.

So this consciousness is not made of any stuff. It’s not matter. Is it just unattached and floating through the universe?

Well, this raises such interesting questions about the nature of matter. In the 19th century, you could think of matter as something good and chunky out there. You could count on it as having location and specific momentum and mass and all of that. Frankly, I think the backdrop of this whole conversation has to be 21st century physics, not 19th century physics. And virtually all of neuroscience and all of psychology is based on 19th century physics, which is about as up-to-date as the horse and buggy.

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