I like this question, shootingstar.
My brain loves, loves, loves foreign languages. I've had 13 years of French, starting in 1st grade, three of Spanish, two of Japanese. The French comes back quickly and fairly fluently when I'm in a French-speaking place. The Spanish and Japanese worked for politesse, but not much conversation. But my head just loves the stuff, and if I could do anything I wanted, I would just go back to school and learn languages until my head was stuffed full.
And I wish I could draw. I'm horrible at it. I still draw exactly the way I did when I was a little kid, and my drawing stank then. It stinketh still.
"My predominant feeling is one of gratitude. I have loved and been loved;I have been given much and I have given something in return...Above all, I have been a sentient being, a thinking animal, on this beautiful planet, and that in itself has been an enormous privilege and an adventure." O. Sacks