I sometimes become very energetic. I usually walk my dogs out, but this time I decided to run around the park. While running, I became even more energetic, as if something was pushing me to the limit. The more I ran, the more energetic I became. Ran for almost an hour, had to stop to catch a second wind. Not only it made me more energetic, it also lifted the spirit. I felt as if I achieved something great. I felt good about myself.