"People like us, who believe in physics, know that the distinction between past, present, and future is only a stubbornly persistent illusion."
In each moment, we have an opportunity to stay or go.
If we stay, if we stay right here, we can see that there is no way to be outside this moment. That there never was anything else. In this constant now there are no problems, and there is no past or future. There is only this, our unnameable existence. Life itself.
If we go (and let's face it, we often do), our thoughts recreate a past and project a future. There is worry and strife. We compare where we are with where we would like to be or where we could have been. This is the human habit--to create a world of struggling and strife through thoughts.
Viewed another way, though, there is no difference between staying and going. We are always present to something, even if it is usually just our own thoughts and projections. Whatever we are present to, in this moment, is our world. No matter how restricted, or unlimited.