Verse 31

अतः स्वात्मनि कर्तृत्वमकर्तृत्वं च संस्थितम् ।निरिच्छत्वादकर्तासौ कर्ता संनिधिमात्रतः

In plain words

Therefore, in one's own ātman, both agency and non-agency stand together: it is non-agent through its very desirelessness, yet agent by mere presence.