I had this dream when I was 4, and for some reason I still remember it.

It all starts in a blue tinted hallway with an infinite amount of doors, this being that the hallway stretches on for eternity. In every door there is a memory or imaginational being gone wrong, and the only one I remember was that before this dream I had daydreamed about riding on a whale. And since I said that the doors were full of my imagination gone bad, there was the whale. But the whale looked different, empty, controlled. But when I reallized this a bolt of fear flew through me, and I ran. The hallway expanded, and the whale charged at me with full power. Suddenly, the end of the hallway appeared right in front of me, where there was a red, slightly new looking door. There being no real choice: Be smooshed by a giant whale or entering an unknown door, I quickly chose the latter. By entering the door I was transported atop the stairs in my house, which I tried to walk down. My vision faded, and everything slowed down as I fell off of the banister. I then woke up.

Anyone know what this means?