Eckhart Tolle, The Power of Now: A Guide to Spiritual Awakening

All problems, suffering, and pain are generated by our egoic mind, clinging to its false self. Breaking free from its captivity is possible only through absolute presence in the Now—the only real moment in life. It is in the Now that we find our true essence, as well as joy and the understanding that wholeness and perfection are not a goal, but a reality accessible to us even now.