अनापन्नविकारः सन्नयस्कान्तवदेव यः ।बुद्ध्यादींश्चालयेत्प्रत्यक् सोऽहमित्यवधारय ॥ १९ ॥
In plain words
No change has ever touched it, and still — exactly as a magnet moves iron without stirring — it sets the intellect and all the rest in motion. That one, turned inward: I am that. Hold it firmly.
Close to the Sanskrit
He who, being one by whom no modification has been undergone, exactly like a magnet, sets the intellect and the rest in motion — that inward one, 'I am that' — ascertain thus.