Verse 15

अज्ञानसंक्षयात्क्षीणे मनसीमे पुनर्मिथः ।रूपालोकमनस्काराः संघट्टन्ते न केचन

In plain words

When, through the wasting-away of ajñāna, the mind is worn thin, these — form, light, the mental act — no longer join together with one another at all.