PRAŚNA UPANISHAD · 5.5

यः पुनरेतं त्रिमात्रेणोमित्येतेनैवाक्षरेण परं पुरुषमभिध्यायीत स तेजसि सूर्ये सम्पन्नः । यथा पादोदरस्त्वचा विनिर्मुच्यत
एवं ह वै स पाप्मना विनिर्मुक्तः स सामभिरुन्नीयते ब्रह्मलोकं
स एतस्माज्जीवघनात् परात्परं पुरिशयं पुरुषमीक्षते । तदेतौ
श्लोकौ भवतः ॥ ५.५॥

yaḥ punaretaṃ trimātreṇomityetenaivākṣareṇa paraṃ puruṣamabhidhyāyīta sa tejasi sūrye sampannaḥ । yathā pādodarastvacā vinirmucyata
evaṃ ha vai sa pāpmanā vinirmuktaḥ sa sāmabhirunnīyate brahmalokaṃ
sa etasmājjīvaghanāt parātparaṃ puriśayaṃ puruṣamīkṣate । tadetau
ślokau bhavataḥ ॥ 5.5॥

“But he who by all the three letters meditateth by this syllable, even by OM on the Most High Being, he in the Solar World of light and energy is secured in his attainings; as a snake casteth off its slough, so he casteth off sin, and the hymns of the Samaveda escort him to the heaven of the Spirit. He from that Lower who is the density of existence beholdeth the Higher than the Highest of whom every form is one city. Whereof these are the verses.

Sri Aurobindo · CWSA 18, p. 189