The densities as respects their sub-densities

[Lighthead]

Here is something that I commented in session 17. Learner said it deals more with planes of another sort but I'm really wondering if these so called sub planes are actually sub densities

RA: I am Ra. You are correct. This is difficult to understand. There are an infinite number of planes. In your particular space/time continuum distortion there are seven sub-planes of mind/body/spirit complexes. You will discover the vibrational nature of these seven planes as you pass through your experiential distortions, meeting other-selves of the various levels which correspond to the energy influx centers of the physical vehicle"

These subplanes they are talking about here pertain to physical subplanes that we progress through in any given incarnation?

Me: So if I'm reading this right and taking into account the mirroring effect, as one moves through certain sub planes of 3rd density, would one then be greeted with mirrors relative and related to the same level that one resides?

During ones incarnation, would one still interact with other selves who are on different sub-planes?

I am like absolutely flabbergasted that no one here has heard of sub-densities. I mean, it's in Book One!!