na tathā badhyate vidvān
tatra tatrādayan guṇān
In the previous chapter, Uddhava asked Lord Kṛṣṇa why an enlightened person, just like a conditioned soul, engages in external bodily functions. Here is the Lord’s answer. While engaged in bodily functions, an unintelligent person is attached to both the means and end of material life and therefore experiences intense lamentation and jubilation on the material platform. A self-realized soul, however, studies the inevitable defeat and suffering of ordinary persons and does not make the mistake of trying to enjoy the bodily functions even slightly. He instead remains a detached witness, merely engaging his senses in the normal functions of bodily maintenance. As indicated here by the word ādayan, he engages something other than his actual self in material experience.