योऽयं देहे चेष्टयितान्तःकरणस्थःसूर्ये चासौ तापयिता सोऽस्म्यहमेव ।इत्यात्मैक्योपासनया यं विदुरीशंतं संसारध्वान्तविनाशं हरिमीडे ॥ ३१ ॥
In plain words
The one in this body who sets it moving, seated in the inner mind; and that one in the sun who makes it burn — that is what I am. By this contemplation of the Self's oneness, the knowers recognize him as the Lord. Him, the end of saṃsāra's darkness — Hari — I praise.
Close to the Sanskrit
He who, this one in the body, is the mover, seated in the inner instrument, and that one in the sun who is the heater — that am I indeed: whom, by this contemplation of the oneness of the Self, they know as the Lord — him, the destroyer of the darkness of saṃsāra, Hari, I praise.