सदृशं चेष्टते स्वस्याः प्रकृतेर्ज्ञानवानपि।प्रकृतिं यान्ति भूतानि निग्रहः किं करिष्यति॥
sadṛśaṃ ceṣṭate svasyāḥ prakṛter jñānavān apiprakṛtiṃ yānti bhūtāni nigrahaḥ kiṃ kariṣyati
Word by word
The verse says
Even someone who knows better acts according to his own nature. Every creature follows its nature. What is holding it down going to achieve?
In plain words
A blunt admission, and it arrives right after two verses about following the teaching.
Even the wise act out their own prakṛti - their constitution, the grain of them.
And then the question, which is close to despairing: nigrahaḥ kim kariṣyati - what will suppression do?
Where you've felt this · in health
You know exactly which conversations set you off, and you have known for years. The knowing has changed the commentary running in your head and almost nothing else. The pattern still arrives on schedule.
Going deeper
This is the Gita conceding something most instructional texts will not.
Knowledge does not confer control. It was said at 2.60 about the senses overpowering even the discerning. Here it is stated about character: you will act out what you are made of, and being informed does not exempt you.
Nigraha - holding down, repression. The question about it is genuinely open and the answer implied is: not much. Sitting on your nature is not a strategy, and the verse earlier in this chapter about the man with still hands already showed what it produces - stillness on the outside and full traffic on the inside.
So what is left? The chapter has already answered, though not in a way that feels like a solution. Not suppression but redirection: the same nature, acting, with the grip removed.
And there is a link to 3.35 two verses on. If nature has a grain, then working against it is not merely hard - it is the thing that brings fear. These two verses are one argument with a gap in the middle.