If you ever want to vicariously experience pure joy in just living, being, you should agree to foster a litter of kittens.
Kittens have it. I cannot believe what a happy, exuberant bunch these six are! Whether they're chasing each other around and around the bathroom, climbing the radiator cover, playing with the feather toy, or trying (make that succeeding) to crawl up my legs in order to say "hi," giving me nose-bumps and kisses, playing with my hair, or tucking into their food, they do it with complete and utter joy and a complete lack of self-consciousness or fear.
They don't know that they were brought to the shelter with their mom because they were unwanted. They want and expect to be adored.
And really, what kind of person would I be if I withheld that?
We are going to be "losing" them over the next couple of days. That makes me very sad... I spent a lot of time with these little nuts, getting to know their personalities and making sure that they became as sociable and human-friendly as I could. (And they ARE super-friendly, just all around great kittens!) I know that it's part of the process, and that we won't make a good foster home if we can never give them back up (as well as being a house with 9 cats and 2 dogs!) but that doesn't mean that I don't feel a pang of sadness.
Bon voyage, kittens. You've made me laugh, you've taught me a lot. And now it's time to let you move on to the next chapter of your lives.