The pas has no power to stop you from being present now. Only your grievance about the past can do that.
Eckhart TolleThe whole essence of Zen consists in walking along the razor's edge of Now - to be so utterly, so completely present that no problem, no suffering, nothing that is not who you are in your essence, can survive in you. In the Now, in the absence of time, all your problems dissolve. Suffering needs time; it cannot survive in the Now.
Eckhart TolleIn the unawakened state you don't use thought, but thought uses you. You are, one could almost say, possessed by thought, which is the collective conditioning of the human mind that goes back many thousands of years. You don't see anything as it is, but distorted and reduced by mental labels, concepts, judgments, opinions and reactive patterns.
Eckhart Tolle