Deja Vu

I know I've posted about dreams on here before, but I'm going to do it again. Dreams are awesome!
So, have you ever had one of those dreams where it predicts something that ends up happening later on in the future? I have, and it is CREEPY.
I wonder how that happens. Are we all born with a little bit of superpowers? I hope so! Talk about sweet! But still, how does that work? You're unconscious, you're dreaming, something happens in your dream, and then it happens in real life.
It sounds like a fantasy novel, but it's real.
Like, for instance, I had a dream a girl in my Health class was having a full-on temper tantrum and my teacher snapped at her. Nothing too out there, but that week, that same exact thing happened. Same people, same class, everything. I sat there and thought how crazy it all was.
Then, there was the dream about going downtown. I woke up and got a call asking me if I wanted to go downtown with the same person I went downtown with in my dream! And my whole day matched up with the dream!
Then, there's those random moments where you freeze and think, "I swear, this has happened before."
So how does this happen? Are we all having subconscious premonitions? Just wonderin'...