Years back I was (still am), very interested in lucid dreaming and I practiced this for a while. Practicing this basically means trying to get lucid dreams working. During this time, one of my best friends died.

So a few weeks after he died, I had my first breakthrough with lucid dreaming:

I was in my dream sitting at a kitchen table with two friends. During this conversation, I had this constant feeling that something was out of place. I tried very hard to lay my finger on it and then I realized, one of the friends I was talking to, died weeks before. At that moment I realized I was dreaming and the dream shifted from a blurry normal kind of dream, to a very specific, hardedged, colored dream. The fact that I was talking to my dead friend really upset me and I quit practicing at that time. For weeks after, I was still trying to figure out what happened to me.

Was it just a dream? Something else and if so, what ? What does dead mean etc etc..

This happened 10 years ago and its since a couple of weeks that I have found the courage again to take up practicing again.

It's very hard with these experiences to say whats real and whats not.