The densities as respects their sub-densities

[anagogy]

Thanks, anagogy. That was perfect.

So taken from that, what would 3rd density, 7th sub-density be like? Would the be akin to somebody of the Eastern faith trying to be at one with God? That seems like the most logical assumption.

Essentially yes.  

This quote refers to a mind/body/spirit dwelling in the 7th subdensity of 3rd density:

95.25 Questioner: I have often wondered about the action of random and programmed catalyst with respect to the entity with the very strong positive or negative polarization. Would one or either be free to a great extent from random catalyst occurring such as great natural catastrophes or warfare or something like that [that] generates a lot of random catalyst in the physical vicinity of a highly polarized entity? Does this great cat, then, have effect on such random catalyst upon the right-hand path?

Ra: I am Ra. In two circumstances this is so. Firstly, if there has been the pre-incarnative choice that, for instance, one shall not take life in the service of the cultural group, events shall fall in a protective manner. Secondly, if any entity is able to dwell completely in unity the only harm that may occur to it is the changing of the outward physical, yellow-ray vehicle into the more light-filled mind/body/spirit complex’s vehicle by the process of death. All other suffering and pain is as nothing to one such as this.

We may note that this perfect configuration of the mind, body, and spirit complexes, while within the third-density vehicle, is extraordinarily rare.

It is dwelling in perfect unity while still seemingly in a 3rd density body.  A good book which has an example of a person like that is "I Am That" by Sri Nisargaddata Maharaj.