One of our human absurdities is the fact that we’re constantly thinking about either the future or the past. Those who are young think of the future because they’ve got more of it. Those who are older think more about the past because, for them, there is more of it. But in order to experience life, we have to live each moment. Life has not been happening in the past. That’s memory. Life is not going to happen in the future. That’s planning. The only time we can live is now, this moment, and as absurd as it may seem, we’ve got to learn that. As human beings with life spans of sixty, seventy, or eighty years, we have to learn to actually experience living in the present. When we have learned that, we will have eliminated a great many of our problems.
Ayya Khema, Being Nobody, Going Nowhere