CHĀNDOGYA UPANISHAD · 8.13.1

श्यामाच् छबलं प्रपद्ये ।
शबलाच् छ्यामं प्रपद्ये ।
अश्व इव रोमाणि विधूय पापं चन्द्र इव राहोर् मुखात् प्रमुच्य धूत्वा शरीरम् अकृतं कृतात्मा ब्रह्मलोकम् अभिसंभवामीत्य् अभिसंभवामीति ॥

śyāmāc chabalaṃ prapadye ।
śabalāc chyāmaṃ prapadye ।
aśva iva romāṇi vidhūya pāpaṃ candra iva rāhor mukhāt pramucya dhūtvā śarīram akṛtaṃ kṛtātmā brahmalokam abhisaṃbhavāmīty abhisaṃbhavāmīti ॥

From the dark (the Brahman of the heart) I come to the nebulous (the world of Brahman), from the nebulous to the dark, shaking off all evil, as a horse shakes his hairs, and as the moon frees herself from the mouth of Râhu. Having shaken off the body, I obtain, self made and satisfied, the uncreated world of Brahman, yea, I obtain it.

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