Ojas
Vigor, strength and vitality that is the essence of all tissues (dhatus).
It means the life sap or the essence of immune system and spiritual energy.
Ojas is a protoplasmic substance called the albumin and globulin that is
formed during the biosynthesis of bodily tissues and strengthens the
tissues.
As ghee is the pure essence of milk, in the same way this protoplasmic
biological substance is the pure essence of biological tissue. In the
churning process to make ghee, agni is created, electricity is created,
which ionizes and separates the molecules of butter from buttermilk. In the
same way, the end product of digested food plus agni(fire or warmth, body
heat) creates the nutritional precursor called ahar rasa. Rasa dhatu agni
transfers the immature ahar rasa into mature sthay rasa. Asthayi means
mobile, unstable, unprocessed, and immature. Sthay means stable, permanent,
and mature. In that transformation, dhatu waste products, dhatu by products
and ojas is created.