तेजो ह वा उदानः । तस्माद् उपशान्ततेजाः । पुनर्भवम् इन्द्रियैर् मनसि संपद्यमानैः
tejo ha vā udānaḥ | tasmād upaśāntatejāḥ | punarbhavam indriyair manasi saṃpadyamānaiḥ
Devanagari rendered by HREEM from the edition's roman (IAST) text; the IAST is the edition's own.
Light is the Udâna (out-breathing), and therefore he whose light has gone out comes to a new birth with his senses absorbed in the mind.
Translated by F. Max Müller