Dreams

What do dreams show? Sometimes my dreams are pretty obvious to me...Like when I dream about my biological father. We had a bad falling out ten years ago and I know when I dream about him it means I have unresolved issues with him. No brainer there... But last night I dreamed about someone I haven't seen in literally 20-plus years and about the small town I lived in for 5 years and where I knew her. The dream involved us wandering around the town and discovering all the changes that had occured since I left. Including a walking tour of the high school I attended for a year, which, as dreams go, was very surreal in it's "new" appearance. So what does it mean? Do I go to lengths to try and look this person up? Join Classmates.com to try and root her out? Go on a pilgrimage to my old hometown? I don't know if I will do any of those things, but I guess it's fun to think about.