There is nothing on earth equal in purity to the wisdom. He who becomes purified by yoga finds this in himself. In his self in the course of time.—-Gita Chapter 4th Solaka 10th.
Comment; I think this Solaka of Gita is very important. The whole truth has been told here. Simply we have already bliss in our hearts, but the problem is that we have to purify our hearts. Who can do it with Yoga finds it already there? So sell -realisation is not such thing which we have to purchase from the market. Only our task is to purify our hearts by Yoga.