Mbh 12.246.1b

[1037] By purifying his heart, the Yogin transcends both righteousness and its reverse. By purifying his heart and by living in his own true nature, he attains to the highest happiness.[1038] The indication of that purity of heart (of which I speak) is that one who has attained to experiences that state of unconsciousness (with respect of all one's surroundings) which one experiences in dreamless slumber. The Yogin who has attained to that state lives like the steady flame of a lamp that burns in a place where the atmosphere is perfectly still. Becoming abstemious in diet, and having cleansed his heart, that Yogin who applies his Soul to the Soul succeeds in beholding the Soul in the Soul.[1039] This discourse, O son, intended for thy instruction, is the essence of all the Vedas. The truths herein disclosed are incapable of being understood by the aid of inference alone or by that of mere study of the scriptures. One must understand it oneself by the aid of faith. By churning the wealth that is contained in all religious works and in all discourses based on truth, as also the ten thousand Richs, this nectar hath been raised. As butter from curds and fire from wood, even hath this been raised for the sake of my son,--this that constituteth the knowledge of all truly wise men. This discourse, O son, fraught with solid instruction, is intended for delivery unto Snatakas.[1040] It should never be imparted to one that is not of tranquil soul, or one that is not self-restrained, or one that hath not undergone penances. It should not be communicated to one that is not conversant with the Vedas, or one that doth not humbly wait upon one's preceptor, or one that is not free from malice, or one that is not possessed of sincerity and candour, or one that is of reckless behaviour. It should never be communicated to one whose intellect hath been consumed by the science of disputation, or one that is vile or low.