Kaṭha Upaniṣad 5.10

5.10

vāyur yathaiko bhuvanaṃ praviṣṭo rūpaṃ rūpaṃ pratirūpo babhūva /
ekas tathā sarvabhūtāntarātmā rūpaṃ rūpaṃ pratirūpo bahiś ca //

9. As the one fire has entered the world
And becomes corresponding in form to every form,
So the one Inner Soul (Ātman) of all things
Is corresponding in form to every form, and yet is outside.
10. As the one wind has entered the world
And becomes corresponding in form to every form,
So the one Inner Soul of all things
Is corresponding in form to every form, and yet is outside.
11. As the sun, the eye of the whole world,
Is not sullied by the external faults of the eyes,
So the one Inner Soul of all things
Is not sullied by the evil in the world, being external to it.