Dream Of Meteor Strike

I had a dream about when the meteor struck earth killing all of the dinosaurs, so in this dream I remember there was magic and all kinds of crazy, chaotic, awesome things. So firstly, I remember some wizard placing a magical, I guess, grimoire down and he was summoning the meteor to earth. When the meteor hit, there was an epic battle that completely stopped. I remember the character I was was stuck behind a fallen boulder and trying to protect somebody. When the meteor finally struck, everybody in the immediate vicinity died except for me and this kid because that boulder that we were stuck behind actually saved us. I remember there was a massive explosion and it was just insane. Next thing I know, a few days later, me and this kid were out in town and everything was so dark and it was like a poison was in the air and we had to survive for a few days before a freeze took over the world, because of all the accumulated dust. Now, when that winter finally came, of course it was extremely hard on everybody. A mass population died. But it was so weird, because it was like, obviously ancient times, but we had modern technology back then as well. It was really weird, but I enjoyed the dream.