Can any of you tell me what time it is? It’s all right to look at your watches now. (Just don’t start looking at them and shaking them when I get into the middle of this sermon!)

How do you know what time it is, or what time itself is? There is a mystery in the concept of time that is difficult to comprehend. The one obvious fact about it is that it is related to perceptions of change. If there were no change, would the concept of time have any meaning?

Actually, we cannot answer such a question because change is the essence of our existence. Even the cells of our bodies are constantly changing and being replaced. We live in the cycles of night and day, the changing seasons, and the processes of aging.

Time and change are for us inseparably related. We cannot imagine a condition without…