Looking Place: Dristhi is the gazing point on which one focuses while performing the asana (“Ashtanga Yoga”). “There are nine dristhis: the nose, between the eyebrows, navel, thumb, hands, feet, up, right side and left side. Dristhi purifies and stabilizes the functioning of the mind” (“Ashtanga Yoga”). In the practice of asana, when the mind focuses purely on inhalation, exhalation, and the drishti, the resulting deep state of concentration paves the way for the practices of dharana and dhyana, the six and seventh limbs of Ashtanga yoga (Scott 23).
[Cite: Source Ashtangayoga.com http://www.ashtanga.com/html/background.html ]