First of all my room has a desk and to the right and left of it are my window curtens. They are both blue. So in my dream I first became a little suspicous when I looked over at my curtens and they are sparkling and I thought that's weird. So I looked to my left and my friend is standing there. He was talking but I wasn't listening so then I started to and he said that is weird you should do an RC. So what I did was take my hand and said to myself if this is a dream my hand should be able to go through this bed. I tried a few times and determined I was awake. Any tips to prevent this it's really unfortunate b/c it was a really vivid and detailed with no blured vision.