Īśopaniṣad Mantra 15 · ईशोपनिषद् मन्त्र 15

हिरण्मयेन पात्रेण सत्यस्यापिहितं मुखम् । तत्त्वं पूषन्नपावृणु सत्यधर्माय दृष्टये ॥

hiraṇmayena pātreṇa satyasyāpihitaṁ mukham | tat tvaṁ pūṣann apāvṛṇu satya-dharmāya dṛṣṭaye ||

Meaning

The face of truth is hidden by a golden vessel; O Pūṣan, uncover it for one devoted to satya-dharma — for vision.