I think I may have dreamt about projecting, but either way, it was a cool experience. I suddenly became lucid at some point, it was actually a FA that believe I somehow caught onto. I was at my house (I'm in college), so I decided to fly out the window. Vision was so clear, it was pretty amazing. I flew up about 300 feet over my neighborhood, and went back down to my street, when I suddenly remembered I always wanted to go through a mirror to see if I could make it into the Astral Plane.
I see a faint light on from the tv across the street at my neighbors house, and decide to go look for a mirror there since I don't really have any big mirror at my place. They ended up having a nice square mirror on the roof (which isn't there in real-life), so I charged at it flying fast and I missed it! I fell through the roof into their home. There was some lady there and another person who didn't notice me, so I look up, see the mirror attached to the ceiling (I guess it was a thick mirror which was both part of the ceiling/roof). I get worried thinking my LD may end so I quickly fly back outside through the roof, and charge again at the mirror. This time - a direct hit! And I go right through... and this was my experience going through it - I got the "OBE" feeling - well it was more intesne, similar to some sensations I get in SP - and I just saw random colors. It was like I flew into that "3D Blackness void" except it was a "3D White Void" with different tone of red and green that looked like "kaleidoscope vision" vision coming towards me, all around me, and way off in the distance. Everything was sort of... warped, and it looked like there was no limit to the distance around me and that it just went on in forever.
I turn around and can't find the mirror, everything was very confusing, and I got worried thinking "what if I get stuck here" - so I start to abort, and can actually feel myself in SP move very slightly when I attempted to, so I felt confident that I would be ok, and decided to let it continue - except in doing that, I brought myself out of that "Colorful White Void" and was laying some bed (not my own at college or home), and some lady was in another bed across watching me I think. Then it pretty much ended on it's own and I woke up.
Well there it is, my first mirror experience, it was pretty cool, looking forward to more in the future :-) My little bro is going to be jealous :P He started having some OBEs himself recently, and he told me he was going to find a mirror before me since I kept forgetting to everytime I went lucid - guess not!