For most people, the greatest good they could do for themselves is to change their energy.  Your emotions give off energy that can be positive or negative. It’s a common experience to walk into a room and feel tension in the air, as opposed to a room where the atmosphere is cheerful and relaxed. We tend to assume that energy is physical, but two people can eat the same lunch and wind up with totally different energy. One person may be depressed, unhappy, and stuck in her ways, while the other is alert, vibrant, and creative. Read at Oprah.com