Last night I had a dream which started that I was in a building I've nevr been in in my life before. I was with a friend in the dream but not someone I know in real life. We were exploring the building just walking through lots of different rooms and corridors and there wer lots of doors everywhere. The were windows in the walls so that the light was from natural light from outside. At one point me and my friend came to some water. It was like a rock sort of artificial rock that you could climb up and over or sit on to look at the water below. I sat down with my friend and noticed that the water was green not blue. A sort of glowing greenish colour. On the other side of the area of water was a door which was closed. I wanted to know what was behind the door but didn't know how to get to the door to open it. I was also scared how I would cross the water and what if something nasty was behind that door? It was only a few steps through the water to the door but I didn't know how deep it was. Suddenly one of my dogs was there and she jumped into the water then climbed back onto the rock with me and my friend. Then as I was thinking about how I would get to the door I noticed that my friend and my dog had vanished. I'm not sure if they had drowned whilst trying to get to the door or something nasty had taken them away. I felt sad and confused what had happened then I woke up. Does this dream have an important meaning? Is it an answer to anything? Thanks for the help