ŚVETĀŚVATARA UPANISHAD · 4.7
समाने वृक्षे पुरुषो निमग्नो अनीशया शोचति मुह्यमानः ।
जुष्टं यदा पश्यत्य् अन्यम् ईशं अस्य महिमानम् इति वीतशोकः ॥
samāne vṛkṣe puruṣo nimagno anīśayā śocati muhyamānaḥ ।
juṣṭaṃ yadā paśyaty anyam īśaṃ asya mahimānam iti vītaśokaḥ ॥
On the same tree man sits grieving, immersed, bewildered, by his own impotence (an-îsâ). But when he sees the other lord (îsa) contented, and knows his glory, then his grief passes away.
F. Max Müller · The Upanishads, Sacred Books of the East 15 (1884)