What is the origin of the idiom "look to one's laurels" and when to use it?

The idiom "look to one's laurels" is believed to have originated from ancient Greece, where victors in athletic competitions were awarded wreaths made of laurel leaves as a symbol of their victory. In modern usage, the term "look to one's laurels" can refer to any situation where a person or group needs to work hard to maintain their position or reputation, especially in the face of competition.