My Horoscope for today says:
"You might not be able to rationalize your optimism today, for your uplifting mood doesn't necessarily correspond to anything specific in your life at this time. Nevertheless, your thoughts have more power than usual, enabling you to use them to positively impact your future. Just be careful that you're not avoiding an issue that must be faced. Exerting control over your life is a smart idea as long as you aren't trying to escape from the truth."
Sort of sounds like Lucy telling Snoopy that he'd best be careful cuz he is in for a "Happiness Let-Down".
It's not so much that I'm optimistic. I just know that the sun is going to rise each day with or without me. So I may as well be present to enjoy it best I can.