MUṆḌAKA UPANISHAD · 3.2.1

स वेदैतत्परमं ब्रह्म धाम
यत्र विश्वं निहितं भाति शुभ्रम् ।
उपासते पुरुषं ये ह्यकामास्ते
शुक्रमेतदतिवर्तन्ति धीराः ॥ १॥

sa vedaitatparamaṃ brahma dhāma
yatra viśvaṃ nihitaṃ bhāti śubhram ।
upāsate puruṣaṃ ye hyakāmāste
śukrametadativartanti dhīrāḥ ॥ 1॥

He knows this supreme Brahman as the highest abiding place in which shines out, inset, the radiant world. The wise who are without desire and worship the Spirit pass beyond this sperm.