Imagination, this what I do. Thinking some positive things that might and will happen in my life. Imagining some wonderful things give you a temporary relief and motivate you do more to get your goals.
Imagine if all the people in this world become happy, they all are living a peaceful life and no one is poor.
I myself imagine that how happy would I be if I develop a good game and it becomes famous within a few days. Going beyond, I also plan how and where to spend my money and the name of banks I would be depositing my wealth :P
Yes, it makes me happy :)