Can you see and feel how love and joy is everywhere around you? Just be present, notice the small things and look around for signs. And the days when it's really grey and dull, if you can't find it elsewhere, search for it within. Through meditation and contemplation you can find the light within. You can even think of the happiest moments you've had - just that same happiness is still there. Don't forget.
"Don't count the days, make the days count." (Muhammed Ali)