From Leo Babauta’s Zen habits:

What I’ve been learning is that happiness and contentment and greatness isn’t out there. It’s not where everyone else is, even if it seems like it. You can spend your whole life chasing this happiness, contentment, dreams, greatness, coolness, and never reach it. That’s because it’s right where you are now.

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Instead, turn to where you are right at this moment. Pause and feel your body, your breath, and all the sensations surrounding you right now. See how this moment contains so much that you don’t normally notice, if you start paying attention.
Realize that this moment is enough. All around you, right now, is a moment that is as high quality as any of the possibilities that often enter your mind of what you should be doing or where you should be. Those ideal experiences aren’t of any higher quality than the experience you’re having right now.