CHĀNDOGYA UPANISHAD · 1.7.7

अथ य एतद् एवं विद्वान् साम गायत्य् उभौ स गायति ।
सो ऽमुनैव स एष ये चामुष्मात् पराञ्चो लोकास् तांश् चाप्नोति देवकामांश् च ॥

atha ya etad evaṃ vidvān sāma gāyaty ubhau sa gāyati ।
so ’munaiva sa eṣa ye cāmuṣmāt parāñco lokās tāṃś cāpnoti devakāmāṃś ca ॥

He who knowing this sings a Sâman, sings to both (the adhidaivata and adhyâtma self, the person in the sun and the person in the eye, as one and the same person). He obtains through the one, yea, he obtains the worlds beyond that, and the wishes of the Devas;

F. Max Müller · The Upanishads, Sacred Books of the East 1 (1879)