As humans we have always been fascinated with the idea of time.
There is the practical aspect of time such as how many hours there are in the day and what you can fit into those hours. Then there are the ideas of past and future time.
It has been said that time is illusory because the only time we have is right now and that what happened in the past stays there and what may happen in the future has not yet happened.
However, we can run into problems when we bring past or future time into our present time. The former can bring guilt, shame, and grief and the latter fear, worry and stress.
If we spend much of our present time occupied with past or future time, we can miss out on life right now and the opportunities it brings with it.