Correspondence Between Densities and Traditional Planes of Existence

[Infinite]

I was really asking for a answer about the correspondence bewteen the densities and the planes. So, in this moment the sincronicity answered me and I found an interesting text. Second the source I was right in my first post:

Physical Plane - 3D
Eteric Plane - 4D
Astral and Mental Planes - 5D
Causal Plane - 6D
Buddhic Plane - 7D
Atmic Plane = 8D or Dimensional re-fusion?

Here is the text (a passage from the book "The Extraterrestrial Vision" by Gina Lake):

Nonphysical and Extraterrestrial Helpers

Before going into this, it might be helpful to clarify who we are and who we mean by "nonphysical beings." Nonphysical beings include fifth-density beings (spirit guides and others on the higher astral plane), sixth-density beings (spirit teachers and others on the causal plane, the plane beyond the astral), and seventh density beings (beings on the buddhic plane, the plane beyond the causal).We are a sixth-density entity on the mid-causal plane, where both teachers for people on Earth and guides to spirit guides can be found.
Just as spirit guides are assigned to each of you, we are assigned to watch over the work of several spirit guides. We teach them how to improve their work with people. We are particularly involved with spirit guides who are working with Star People and Walk-ins, since their work relates most to Earth's transformation. Similarly, seventh density beings oversee the work we sixth-density beings are doing.

5D = higher astral plane
6D = causal plane
7D = buddhic plane

So, I suppose that 3D is physical plane and 4D is etheric plane. All this make much sense.

Peace, love and light.