आत्मा ज्ञानमयः पुण्यो देहो मांसमयोऽशुचिः ।तयोरैक्यं प्रपश्यन्ति किमज्ञानमतः परम् ॥ १९ ॥
In plain words
The Self is made of knowing, and it is pure. The body is made of flesh, and it is not. Yet people look at the two and plainly see one thing. What ignorance goes deeper than that?
Close to the Sanskrit
The Self is made of knowledge, pure; the body is made of flesh, impure. Of those two they fully see the oneness — what ignorance is greater than this?