जानाम्यहꣳ शेवधिरित्यनित्यं न ह्यध्रुवैः प्राप्यते हि ध्रुवं तत् ।ततो मया नाचिकेतश्चितोऽग्निरनित्यैर्द्रव्यैः प्राप्तवानस्मि नित्यम् ॥ १० ॥
In plain words
I know that the treasure sought for is impermanent — the permanent cannot be reached by impermanent means. So, having kindled the Nāciketa fire by impermanent materials, I have thereby attained the permanent.