Chapter 9 - Verse 4

मया ततमिदं सर्वं जगदव्यक्तमूर्तिना ।
मत्स्यानि सर्वभूतानि न चाहं तेष्ववस्थितः ॥ ४ ॥

mayā tatamidaṃ sarvaṃ jagadavyaktamūrtinā .
matsyāni sarvabhūtāni na cāhaṃ teṣvavasthitaḥ .. 4 ..


By Me all this world is pervaded, My form unmanifested. All beings dwell in Me; and I do not dwell in them.
Read the commentary
All this world is pervaded by My Highest Being, My form being invisible to the senses. In Me, of unmanifested form, dwell all beings from Brahma down to the plant. No being devoid of the Self can ever become an object of experience. Wherefore they dwell in Me, i.e., they are self-existent (or have an individual existence) through Me, the Self, (i.e., they are what they are in virtue of Me, the Self, underlying them all.) Since I am the Self of all those beings, it would seem to the deluded as though I dwell in them. Wherefore I say: I do not dwell in those beings, because of the absence of contact with others, unlike corporeal things. I am certainly the innermost essence even of the akasa. That which is unconnected with any object cannot indeed be contained anywhere as though in a receptacle.