4. When one is not attached to the objects of senses or the performance of actions, having renounced all the desires inconsistent with equanimity, he is known to be abiding in equanimity.
Bhashya :- Sri Krishna speaks of the marks of those who have established themselves in equanimity. For such one, there is comprehensive detachment. On perception of the Lord, all the defects get terminated on their own. For others, with special efforts.
Tatparya Nirnaya :- How does one become non-attached? By renouncing all desires (says Sri Krishna). By renouncing all actions to Me. Also having been said thus. Knowing all these to be subservient to Me is itself said to be renunciation to Me.
5- 6. The Self should be enriched by one's own Self. One should not degrade one's own Self. For, self alone is the kinsman of the self and the self alone is the enemy of the self. For him who bas won over his self, the self alone is the kinsman of his self. For him who bas not won over in this manner, his very self will become adversary like an enemy.
Bhashya :- Only by constant endeavour and action can one abide in equanimity, thus has been spoken. For whom is the self a kinsman? Here आत्मा means the mind, आत्मन: means Jiva. आत्मना means by mind, आत्मानाम् means to the Jiva, आत्मैव means mind and आत्मना means by the Jiva, because by his intellect only does the human being succeeds.