Verse 16

Glance

शेषस्तु चेतनो जीवः स चेच्चेत्येन चेतति ।अन्येन बोध्यमानोऽसौ नात्मतत्त्ववपुर्भवेत्

In plain words

But what remains is the sentient jīva. If that is conscious only through something perceived, made known by another, it could not be the very form of the truth of the ātman.