If you keep your attention in the body as much as possible, you will be anchored in the Now. You won’t lose yourself in the external world, and you won’t lose yourself in your mind. Thoughts and emotions, fears and desires may still be there to some extent, but they won’t take you over.
"Eckhart Tolle (born Ulrich Leonard Tölle, February 16, 1948) is a spiritual teacher. He is a German-born resident of Canada best known as the author of The Power of Now and A New Earth: Awakening to Your Life's Purpose. In 2008, a New York Times writer called Tolle "the most popular spiritual author in the United States". In 2011, he was listed by Watkins Review as the most spiritually influential person in the world. Tolle is not identified with any particular religion, but he has been influenced by a wide range of spiritual works." Source: Wikipedia