प्र ते ब्रवीमि तदु मे निबोध स्वर्ग्यमग्निं नचिकेतः प्रजानन् ।अनन्तलोकाप्तिमथो प्रतिष्ठां विद्धि त्वमेतं निहितं गुहायाम् ॥ १४ ॥
In plain words
'I declare it to you -- attend to my words, O Naciketas, as one who understands the fire that leads to heaven. Know this [fire] as the attainer of boundless worlds, and also as their foundation -- and know it too as set within the cave [of the heart].'