2.52 When is attained that wisdom which arises from the purification of the mind brought about by the pursuit of (karma-) yoga? This is being stated: Yada, when, [Yada: when maturity of discrimination is attained.] at the time when; te, your; buddhih, mind; vyatitarisyati, will go beyond, cross over; moha-kalilam, the turbidity of delusion, the dirt in the form of delusion, in the form of non-discrimination, which, after confounding one's understanding about the distinction between the Self and the not-Self, impels the mind towards objects  that is to say, when your mind will attain the state of purity; tada, then, [Tada: then, when the mind, becoming purified, leads to the rise of discrimination, which in turn matures into detachment.] at that time; gantasi, you will acire; nirvedam, despassion; for srotavyasya, what has to be heard; ca, and; srutasya, what has been heard. The idea implied is that, at that time what has to be heard and what has been heard [What has to be heard৷৷.has been heard, i.e. the scriptures other than those relating to Self-knowledge. When discrimination referred to above gets matured, then the fruitlessness of all things other than Self-knowledge becomes apparent.] becomes fruitless.