I sometimes awaken at night and there is a conversation about enlightenment that was happening while I was asleep. I wake to just the tail end of the conversation and only get the last few words of it. I lay there and think to myself, "I wish I could of heard the whole conversation"!  Also "who was I having the conversation with?" Last night I woke to a voice saying  "that's because there is bliss on the inside, and junk on the outside". Weird ! But it happens often. Other times I know there was a conversation going on, but I have no idea what was said. Not consciously anyway. Does anybody else experience any thing like that? Maybe that's common?