What is meaning of some things r bounded by time?

The phrase "some things are bounded by time" suggests that certain experiences, opportunities, or phenomena have a limited duration or lifespan. This could refer to events that are temporary, like seasonal activities, or stages in life that are fleeting, such as childhood. It emphasizes the idea that time can impose constraints on how long we can enjoy or engage with specific aspects of life, making them more precious and encouraging us to cherish them while they last.