ŚVETĀŚVATARA UPANISHAD · 4.1

य एको ऽवर्णो बहुधा शक्तियोगाद् वर्णान् अनेकान् निहितार्थो दधाति ।
वि चैति चान्ते विश्वम् आदौ स देवः स नो बुद्ध्या शुभया संयुनक्तु ॥

ya eko ’varṇo bahudhā śaktiyogād varṇān anekān nihitārtho dadhāti ।
vi caiti cānte viśvam ādau sa devaḥ sa no buddhyā śubhayā saṃyunaktu ॥

He, the sun, without any colour, who with set purpose by means of his power (sakti) produces endless colours, in whom all this comes together in the beginning, and comes asunder in the end--may he, the god, endow us with good thoughts.

F. Max Müller · The Upanishads, Sacred Books of the East 15 (1884)