What does optima dies...prima fugit mean?

"Optima dies...prima fugit" is a Latin phrase that translates to "The best days...are the first to flee." It suggests that the most cherished or happiest moments in life tend to pass quickly, emphasizing the fleeting nature of time and the importance of cherishing the present. This sentiment can resonate deeply in various contexts, reminding us to appreciate joyful experiences as they happen.