What does it mean when a dream comes true?

I had a dream i was at school with my boyfriend and the school was having a raffle which they do every friday but we dont usually stay for them because they give away stupid stuff like homework passes. Well in my dream i was there and won tacos..well the next day at school i forgot my id to get off so i had to stay for the raffle well strange enough i won a bag of tacos..what does it mean if a dream comes true and it was strangely accurate. I don't think im pshycic or anything but this is freaking me out