Question

Hello Rabbi,
According to the definition of mysticism in the lectures, mystical knowledge has to be transmitted by way of trust, since it is entirely subjective and depends on the personal experiences of the person who possesses that knowledge.
My question is: what about human psychology or the concept of the soul? Is this whole realm, and all the knowledge within it, mysticism? After all, all of a person's psychological content—desires, thoughts, emotions (even the sensation of pain, though maybe that strays a bit from the question)—all of these and more are a completely subjective world, open to judgment only from the outside and only on the basis of trust, or through personal experience.
And if, for example, we compare psychology with a mystical field like numerology—after all, psychology can be studied observationally, like watching a child grow up, or through broader analyses of society and religions that rely on surveys and statistics. But all of that exists in mysticism too, in numerology—a person can give lectures about why companies founded on certain dates are more profitable and bring examples for that, or predict various things that will happen, like an earthquake or a market crash.
In both of these worlds there is "observation," but in both of them observation only gets us so far, until we run into the differences between the objective world and the subjective one.

The Rabbi is a dualist. So am I. And dualism contains within it a solipsistic doubt, maybe the tiniest of tiny doubts, but it's still there—that wall, or the mind-body problem. Is the soul, in your view, a mystical concept?

By the way, it seems very possible to me that the answer is yes, but I think that in the second lecture you did say a sentence or two about psychology and did not include it with mysticism.

I would greatly appreciate an answer