Verse 31

यथा तेजस्तिमिरयोर्न संबन्धो न तुल्यता ।अत्यन्तभिन्नयो राम तथैवात्मशरीरयोः

In plain words

As between light and darkness there is neither connection nor equivalence, the two being utterly distinct, so indeed, Rāma, it is between Self and body.