This happened to me last night I woke up 3 times in the middle of the night only to fall back asleep and lucid dream in a whole new scenario over and over. It is an amazing feeling when you wake up in the morning and you are stunned by the events that have just unfolded in your mind. I wanted to go back to sleep again but I realized it was 1pm and I wasn't going to be able to fall asleep. Nice experience!!!
Well here is the problem with marijuana and dreams. Everyone is affected by the weed differently and different types of marijuana cause different affects. I have personally had some good lucid experiences while going to sleep really high. It depends on the person and the strain of weed. Sooner or later someone will come along and run tests to see just how it affects your dreams. I have also astral projected while high and it was amazing. There are so many variables that can affect the dream state that it really can't be stated as a fact that marijuana helps lucid dreaming and or astral projection or makes it harder to do these things.
Also I would appreciate it if you would reply with some cool, unique or odd experiences you have had lucid dreaming and or astral projecting. I will be posting those stories via screenshot to my page (not all but some depending on how much I get). The screen shot will include your forum name and if you do not want it to include your forum name please put that at the end of your post. Much appreciated to anyone who replies.