
Ojas is a Sanskrit word which literally means "vigor". According to the principles of Ayurveda, it is the essential energy of the body which can be equated with the "fluid of life". Those who practice Ayurveda say that Ojas is the sap of one's life energy which, when sufficient, is equated with immunity and, when deficient, results in weakness, fatigue and ultimately disease. Ojas is produced at every stage of digestion and is the finest end product of digestion.
Ojas is Primal vigor. Ojas is the subtle energy of water, the stored-up vital reserve, the basis for physical and mental strength and endurance. It allows the body-mind's balanced functioning. Ojas is responsible for maintaining contentment, luster, strength, and health. It is the main factor responsible for immunity.