> There's a lot going on upstairs, higher mind stuff. I am older now, and I no longer experience this phenomena. Have I lost it to age, or have I integrated it somehow into my conscious mind?
It's similar to what Jaynes described in his "bicameral mind." Man of antiquity "heard" disembodied wisdom dispensed to him, seemingly at random, from an incorporeal source: "gods." Today we simply regard such pseudo-auditory phenomena as "thought," which may throw light on Cartesian-style equation of "the soul" with "the mind," and enduring mathematical truths with divinity.
Following the Bronze Age collapse and the "breakdown of the bicameral mind," human culture is replete with examples of people trying to hear the voices of gods, who were now being crowded out by the conscious, egoic, individualistic mental chatter of the newly developed default mode network - the crying out of the Psalms, elaborate rituals and procedures for invoking divine inspiration in the oracles, various forms of divination, augury, etc.
Tarot, properly understood, is not a means for divining the future, but a debugger or reverse engineering tool for probing the internal psychological state of the querent, and hopefully coaxing out these moments of unconscious, unbidden inspiration.
Much of modern esotericism is about trying to steer the brain into states of mind where these vestigial, intuitive, subconscious, nonlinear, pattern matching, Kahneman System 1 facilities of thinking, become once again accessible to conscious prompting and dialogue. Jaynes calls this "the induction," the Romans called it "the genius," Thelemites know it as "the knowledge & conversation," and it may be most broadly described as "union with God."