In my working theory, each lifetime goes through stages of consciousness that match the primary colors. Of course, we don't always live long enough to get through all seven in a particular lifetime. Hence, successive lifetimes may get past first lessons/experiences sooner in order to get to the later ones.
And how long do each of those levels take? IMHO seven years each, with each of them corresponding to the primary colors too, although this gets a little stretchy.
I suppose I can consider this 3D as the first note and look forward to 3D of the next octave as a fulfillment, but it's bad enough to realize that I'm at level 3, let alone at level one
. I don't consider that concept as useful, at least to me, but I'm open to any theory.
And how long do each of those levels take? IMHO seven years each, with each of them corresponding to the primary colors too, although this gets a little stretchy.

I suppose I can consider this 3D as the first note and look forward to 3D of the next octave as a fulfillment, but it's bad enough to realize that I'm at level 3, let alone at level one
. I don't consider that concept as useful, at least to me, but I'm open to any theory.