Yoga is a means by which one arrives at union with the Truth behind things through an inner discipline which leads us from the consciousness of the outward and apparent to the consciousness of the inner and real. Yoga consciousness does not exclude the knowledge of the outer apparent world but it sees it with the eyes of an inner, not an outer seeing and experience, alters and sets right all its values in the light of an inner deeper greater truer consciousness and applies to it the Law of the reality, exchanging the law of the creature’s Ignorance for the rule of a divine Will and Knowledge.

A change of consciousness is the whole meaning of the process of Yoga.

Ref: Essays Divine and Human