There is no distinction. It’s all in relation to how one focuses your abilities. Some will focus on the psychic realms while others will focus more on speaking to souls who are on the Astral Plane. All of us are capable of all three. We have an uncanny way of trying to put things into little boxes. For some reason we feel that if it is contained in a box with a title we are able to understand it better. Our limited perception of reality necessitates this for us.
To be able to tap into the dimension of the Astral plane. This is not hard to do. Any one of us could do this. Humanity is constantly trying to reassure itself of its own ideas of its mortality. It takes a willingness to listen and be able to decipher the voices of those with which we wish to communicate. That is all. It is quit easy. It is to focus our attention in that arena of communication and be able to filter out outside stimulation and distractions. It is a very high level of meditation in a way because the person wishing to communicate must exhibit a certain level of discipline within his/her being. But it is very attainable state for all or us. There is no mystery to it.
Realize that entities in the Astral Plane use a form of symbols and clues. They’re not very adept at communicating. It is up to the entity receiving the information to clarify what he or she is hearing. The higher dimensions of the Astral Plane are a waiting and learning area.
Many times when communicating with a so-called medium, the information that appears to be logical to the entity in waiting does not always make it through in that format. It can come in somewhat distorted at times. This is not rocket science you know. It is very easy thing for all mankind/womankind to do. It’s just a matter of focusing and listening.
Often the problem lies in the area of too many entities wanting to speak to the medium at the same time. As I said before, they are not very good at this and tend to want to jump in and be heard and there lies the confusion. Many of us do not want to communicate because of our fears and religious indoctrination. It is easy to do, but if we do not believe in it, it serves no purpose.