Weirdness

I can remember when I was a little kid, maybe 4 or 5 I had this dream that was so vivid that it has plagued my mind all these years. and my memory isn’t that great so it still astounds me how I remember it... anyways. I remember it was in the distant future, everything had changed, but yet it was all the same. The sky was dark with a few stars twinkling and my sister Jessica was holding my hand as we crossed the street to go into a building that resembled a church I went to when I was very young. we walked into the building, Everything was dark and to my left are desks like you would find in a class room, but instead of a chalk board at the head of the class there is a stage with a huge velvet curtain. and to my right is a big room with just open space. But ahead of me is where my attention goes. Ahead is a small walk way resembling one of when your walking into a cave it has no ceiling, and there is red light emitting from the walk way, I look around for Jessica but she had disappeared, un phased by this I continue on by myself as I walk through the path I see that the walk way opens up to a huge circular room but I don’t enter the room because there are aliens in the center cooking something in an extremely large cauldron. instead there was a ladder to the left of me that led up to a ledge that went around the whole room like a bench. and as I start to climb I come to see that people are sitting up on the ledge watching the aliens do their stewing. (the aliens are completely oblivious to the people for some reason) and I crawl onto the ledge and sit and watch, some time goes by and then I turn and I see my oldest sister Melissa sitting next to me....but she's a baby. like I remember from baby pictures my mother had shown me. and next to her is the nanny I had at the time and she was holding Melissa. all of a sudden I’m not on the ledge anymore with my sister.....I’m in the class room with the stage and I’m hiding under a desk there is a boy under a desk in front of me and he's telling me to follow him his voice is so soft and it scares me, I ask him why and then he disappeared. probably because I didn’t follow him, but then a huge monster comes out from the stage and starts running after me and I try and go through h the desks as quick as I can but I cant seem to go fast enough, then the little boy is in front of me again asking me as softly and as politely as before for me to follow him, so I do. As I follow him I realize that I am going under the desks quicker and I’m escaping the monster. finally I’m close enough to where I get from under the desk and run for the door. as i run i see my sister jessica in the middle of crossing the street going back to the car and i grab her hand and walk with her as if nothing had happened and we were just going home.

if anyone can help me understand this it would be great.

thanks, Steffy