I teach. Why do I do that? It is my passion. There is nothing more exhilarating to me than to see a face light up and get excited about my subject. When I teach, I am fully alive.
Some background. I went from kindergarten all the way through college without having a single teacher get me excited about their subject. I was convinced that teaching was the most boring, dead-end, passionless job one could choose. There were no role models for me.
Then I began teaching my own children. Here was a task with an incredible investment in it. To cover things that I couldn't do well myself, we joined a co-op where I had to teach others. The small experience I got there was like lighting a match in a room full of pure oxygen. A fire roared to life. I was hooked.
Find your passion. Your passion also just happens to be what you are good at! And then, if at all possible, find a way to make a living doing it. It is like putting the hot fudge sauce on the ice cream! It is slicing into a home-grown tomato from a plant you hovered over all summer. It is the killer serve you've perfected in your tennis game. What you have done has brought you joy. How good life is.