I like Eckhart Tolle and his main philosophy. We only have NOW. Not even later today or yesterday or tomorrow. All of those things are actually not actual realities yet, or even an actual thing. They are thought, and thought is not truth. So if we stay in ONLY right now, which is the only thing we ever will have, that is where peace is. Sometimes it's hard to remember this because our minds run on subconscious thoughts , not primarily clear consciousness. But his ideas always make sense and make me feel a semblance of peace.