SOUL memory according to Theosophy is referred to as ‘reminiscence,’ and it is this kind memory that assures every human being, whether they know it or not, of their having lived before, and having to live again.
To fully grasp the idea, we first have to study the complex relationship between the human and transcendental aspects of mind (represented physiologically by the brain’s left and right hemispheres.)
There is a well known analysis of soul knowledge transmission by W. Q. Judge in his Ocean of Theosophy, Ch.9: “By living according to the dictates of the soul the brain may at last be made porous to the soul’s recollections; if the contrary sort of a life is led, then more and more will clouds obscure that reminiscence.”
The differences were experienced directly by neuroanatomist Jill Bolte Taylor PhD, described in her book “My Stroke of Insight.” In a memorable TED Talk, she describes her experience in dramatic detail:
“Jill Bolte Taylor got a research opportunity few brain scientists would wish for: She had a massive stroke, and watched as her brain functions — motion, speech, self-awareness — shut down one by one. An astonishing story.”
This fundamental double consciousness, Blavatsky explained, is termed first “the spiritual, or those which belong to the imperishable Ego,” (Key to Theosophy, Section 8, On Individuality and Personality). Second, she describes the intellectual/rational, personal physical brain states:
which inhabit the ever-changing bodies, or the series of personalities of that Ego.
Notwithstanding, our higher mind knows and remembers all its lives, she insisted, “as well as you remember what you have done yesterday. The real Ego has not forgotten them, and the personal never experienced them. Shall the new boots on the feet of a boy who is flogged for stealing apples, be punished for that which they know nothing?” she asks.
That which is called “the divine man,” is the “real Individuality,” who like the elegant elephant, never forgets. But its vehicle the personality has no access to that history as it corresponds to “a new suit of clothes.” There are, however, importantly:
modes of communication between the Spiritual and human consciousness or memory.
Evidence for such modes lies in powers of intuition, conscience, premonitions, & etc. and, most powerfully, from recent research into the so-called NDE or Near Death Experience. But such states as this “have never been recognised by your scientific modern psychologists,” Blavatsky wrote in her day.
That may be changing now.