Ever feel like you belong somewhere else?

wrote the following:

I suppose I have too much time on my hands but I often just sit and think about really overwhelming things. It's good in a way because I'm getting to know myself but it's also kind of dangerous because I could drive myself crazy. A common thought is that I don't really serve any purpose on Earth. I feel I belong somewhere else. I'm just getting by here. It's not really fulfilling, satisfying. I feel like there's another world out there. Somewhere I'd feel more at home, somewhere I'd serve more purpose. I've tried explaining this feeling to my closest friends but nobody has felt the same and think it's really strange. Does anyone else ever feel like this?