There are two days in the year that we can not do anything, yesterday and tomorrow

The statement you mentioned, "There are two days in the year that we cannot do anything, yesterday and tomorrow," is a philosophical or metaphorical statement rather than a literal one. It suggests that the only day we have control over is today, the present moment.

The idea behind this statement is that we cannot change what has already happened (yesterday) or what is yet to come (tomorrow). Therefore, the only meaningful time to take action or make a difference is in the present.

While it is true that we cannot physically alter the past or the future, it is important to note that our actions today can have an impact on the future. The choices we make and the actions we take in the present moment can shape our future experiences. So, while we cannot directly control yesterday or tomorrow, we can learn from the past and make decisions today that can influence tomorrow.

In a broader sense, the statement can also be interpreted as a reminder to focus on the present, to be mindful of the here and now, and to make the most of the opportunities that are available to us at any given moment. It encourages us to live in the present and not get caught up in regrets about the past or excessive worries about the future.