Here's my own brand of cheeriness...my favorite poet (well, certainly among the top three), and my favorite stanza from my favorite of his poems:
For oft when on my couch I lie
In vacant or in pensive mood,
They flash upon that inward eye
Which is the bliss of solitude;
And then my heart with pleasure fills
And dances with the daffodils.
Ahhh...Wordsworth. Just reading it, writing it, hearing it, considering it -- my heart is dancing:)