I have noticed during the time that i meditate and also when i drift to sleep, I experience something i can only describe as micro dreams. It isn't the same kind of dream that takes place in the REM state, but more of a thought or words which come from somewhere besides my conscious mind. Usually it seems like irrational gibberish without any kind of context, and I can can never directly observe it, only realize and remember it the split second after it happens. I am wondering if it could be something coming out of my subconscious or from an external source, and why it doesn't make any sense.