Hi Glenda,
Great questions!
1. The movement of energy through the chakras is something we've been working on, with a bunch of new material. We'll be posting some of that soon.
2. Yes, a lot of non-physical communication is on the astral level (in dreams etc), but if one party is conscious of it, as in conscious connection with another's essence, it'll have roots in the physical plane. In other words, you could communicate with someone else on an essence level (basically, this is by intention), and because you are having a conscious experience of it, the experience is based on the physical plane.
There's an element of semantics involved here, because the physical plane, with all its infinite versions of reality and the astral plane exist in the same "place" (meaning the astral plane is "here"

, but we have difficulty maintaining awareness of anything but our physical-plane reality.
Karen