Kena Upanishad 1.7

यच्चक्षुषा न पश्यति येन चक्षूꣳषि पश्यति | तदेव ब्रह्म त्वं विद्धि नेदं यदिदमुपासते ॥

yach chakshusa na pashyati yena chakshunshi pashyati | tad eva brahma tvam viddhi nedam yad idam upasate ||

That which is not seen by the eye, but by which the eyes see — know that alone as Brahman, not this which people worship here.

जो आँख से देखा नहीं जाता, परन्तु जिसके द्वारा आँखें देखती हैं — उसी को तू ब्रह्म जान; वह नहीं जिसकी लोग यहाँ उपासना करते हैं।