Being and time is a concept that is used to discuss how our life passes by as time goes on. It's like a reminder that our life is always moving and changing, even when we can't see it happening. It's kind of like a timer, but instead of counting down seconds, it counts down our life. Every second that passes, we get older and closer to the end of our life. It's important to remember this so we can make sure we make the most out of our time on earth!