What is Trataka?
We can enhance our power of concentration and strengthen our memory by an ancient meditation technique called Trataka. Doing Trataka enhances our ability to concentrate, increases memory, and brings the mind into a state of attention and focus. Trataka is an ideal meditation technique, and it may improve your eyesight.
Light a candle or ghee lamp. Sit in an upright position in a chair or on the floor (cross-legged) to ensure that the spine stays erect and that inner energy can flow easily through the subtle channels of the body.
Keep the flame at a arm’s length from your face and at eye level. Begin by taking a few deep breaths. Gently focus your eyes on the flame and avoid blinking for as long as you are able to. You may start to feel tears develop in the eyes. Producing tears is said to have many beneficial effects. Keep your eyes focused. Softly gaze at the flame, not the candle or ghee lamp. Let your vision stay with the flame. If thoughts arise, simply acknowledge them and let them go.
When tears flow, close your eyes. You will see the after-effect of the flame. Keep the eyes closed and see the “flame” glow with closed eyes. Focus on the flame’s after-image with closed eyes and notice how it may be changing. It may glow very brightly and then grow dim, only to glow brightly again. It may change colors and size. Bring your attention to the space between and just above the eyebrows, the third eye. You may feel deep peace and distance from your body. Allow that feeling to permeate your entire being. After the flame has diminished from your mind’s eye, slowly open your eyes. Avoid looking at the flame.
Ideal times for performing Trataka are sunrise and sunset.
This information has been adapted from: http://www.eternity-yoga.com/tratak.html