A very hard word to define. One must pick up the meaning of existence. And existence can only refer to people. Generally, it is better to not exist, but existing is not always a bad thing. Good people exist, and bad people do not. However, people generally like those who do not exist more. The best definition of existence is close to, but not exactly, the combination of how good a person is in any way compared to how much they try. People who try very hard and are very successful often exists, while those who really don’t care do not exist. However, that is not the only basis for existence. For more on existence, one must hear examples of who exists and who doesn’t. Every person fits into one of the following categories: defines existence, exists, barely exists, barely does not exists, does not exist, defines non-existence.
"He practices the piano for twelve hours a day to stay that good. He defines existence.