Your thread is about your claims that you receive messages from the spirit world so my question is entirely on topic and, as yet, entirely unanswered.
Your defense against being labelled as a spirit medium seems to be the question about whether the source of your messages are alive or dead.
This is a red herring.
According to you, people who have died have not really dead. You have described it many times in a way that is identical to Platonic mind-body dualism. A person's spirit is imprisoned in their body during physical life and released at physical death. The spirit lives on as fully conscious as it ever was. (I intend to post a new thread on this harmful belief when I get time)
According to Jesus the faithful who died physically are already alive - "But about the resurrection of the dead—have you not read what God said to you, ‘I am the God of Abraham, the God of Isaac, and the God of Jacob’ He is not the God of the dead but of the living.” - Matt 22:31,32
It would follow that receiving a communication from the spirit of Abraham, Isaac, Jacob or my great aunt Mabel is not a message from a dead person but from the living. To say otherwise is to go put the OT over Jesus' revelation.
Your defense that it is ok to communicate with live spirits but not with the dead must therefore also apply to communcating with my great aunt Mabel.
As for your definition of "medium" it is still not clear what your point is.
You receive messages from a the spirit you call christ and you pass those on to others. A number of times recently, even in this thread, you have told me that the spirit has asked me a question via your mediumship.
You frequently post new threads that begin with grandiose pronouncements for everybody from christ the spirit.
You may see a difference between what you are doing and the practices of a spirit medium but the distiction exists only in your own mind.