The Vision of Īśāvāsya
Forming the concluding 40th chapter of the Śukla Yajurveda Saṁhitā, the Īśā Upaniṣad stands as one of the shortest yet most philosophically concentrated jewels of the Upaniṣadic canon. It opens with the famous proclamation: Īśāvāsyamidaṁ sarvaṁ yatkiñca jagatyāṁ jagat—all that moves in this shifting universe is enveloped by the Divine.