Know someone on the other side?

Periodically I have dreams where I meet someone and have this sense that I know them very well, but can't pinpoint specifics. I'm always happy to see them and sad that I don't get to stay with them. The features change slightly each time, but it feels like the same person. I don't recognize this person as someone I have ever met, yet I feel more love for this person when I see them than I have ever felt in day to day life.

Am I crazy or can anyone else relate to this? Any personal stories or questions are welcome! =)