Verse 19

न वह्नेर् दाहिका शक्तिर् व्यतिरिक्ता विभाव्यते ।केवलं ज्ञानसत्तायाम् प्रारम्भो ऽयम् प्रवेशने

In plain words

The burning of fire is not contemplated as apart from fire. This is only a beginning, for entering into the being of .