You posted awhile back about the Astral ascension in Final Frontier.
Maybe this will give a better understanding. Some dope-smokers believe that they can 'astrally project' from their bodies. While this doesn't have to mean that Jon Shafer thought that out of body experiences were possible, there are myths of higher realms of mythical creatures and even a library of everything. If I had known this then I would've said something. But I think that's what he was referencing with the Astral Gate. If that gives a better understanding.
Maybe this will give a better understanding. Some dope-smokers believe that they can 'astrally project' from their bodies. While this doesn't have to mean that Jon Shafer thought that out of body experiences were possible, there are myths of higher realms of mythical creatures and even a library of everything. If I had known this then I would've said something. But I think that's what he was referencing with the Astral Gate. If that gives a better understanding.