काष्ठे प्रवर्तितो वह्निः काष्ठेन सह शाम्यति । नादे प्रवर्तितं चित्तं नादेन सह लीयते ॥ ४.९८ ॥

kāṣṭhe pravartito vahniḥ kāṣṭhena saha śāmyati । nāde pravartitaṃ cittaṃ nādena saha līyate ॥ 4.98 ॥

Just as fire, catching onto firewood, is then extinguished along with it (after burning it up), so the mind also, by working with Nâda, becomes absorbed along with it.