Every human being emanates an energy field that corresponds to his or her inner state, ... Some people are most clearly aware of it when they first meet someone, even before any words are exchanged. A little later, however, words take over the relationship and with words come the roles that most people play. Attention then moves to the realm of mind, and the ability to sense the other person's energy field becomes greatly diminished.

Eckhart Tolle

from A New Earth: Awakening to Your Life's Purpose