Verse 48

द्वे बीजे राम चित्तस्य प्राणस्पन्दनवासने ।एकस्मिंश्च तयोः क्षीणे क्षिप्रं द्वे अपि नश्यतः

In plain words

O Rāma, two are the seeds of citta: the pulsation of prāṇa and vāsanā. Let but one of these two be exhausted, and both at once swiftly perish.