Someone once asked...
Someone answered with kindness...
The present is a gift you give yourself, by being still and experiencing the wonders all around you. The past no longer exists, the future is uncertain, the present is all you have. Reflecting about the past, or what was just said, or daydreaming about what is next or the future, take you away from the present. The present is the balance point between doing nothing, or doing something, so the question is always a dance around these decisions.