Verse 6

इति निश्चयवानन्तर्भूतमात्मतया जगत् ।पश्य हर्षविषादाभ्यां नावशः परिभूयसे

In plain words

Firm in this conviction, see the world as held within, as being of the nature of the Self itself; then you will not be helplessly overpowered by joy and by sorrow.