By Me, in My unmanifested form, this entire universe is pervaded. All beings are in Me, but I am not in them.
Author Name:-Sri Ramanuja
9.4 This ‘entire universe,’ composed to sentient and non-sentient beings, is pervaded by Me, the inner controller, whose ‘form is not manifest,’ namely, whose essential nature is unmanifest. The meaning is that all this is pervaded by Me, the Principal (Sesi), so that I may sustain and rule this universe. This, the pervasion of all by the inner controller, who is invisible to the entire group of sentient and non-sentient beings, is taught in the following passage of the Antaryami-brahmana: ‘He who dwells in the earth … whom the earth ‘does not know’ (Br. U., 3.7.3) and ‘He who dwells in the self … whom the self does not know etc.,’ (Br. U. Madh., 3.7.22). Therefore ‘all beings abide in Me’; all beings rest in Me who am their inner controller. In the same Brahmana it is taught that their existence and control are dependent on Him, as they are subject to His control and as they constitute His body: ‘He whose body is the earth … who controls the earth from within’ (Br. U., 3.7.3) and ‘He whose body is the self … He who controls the self from within’ (Br. U. Madh., 3.7.22). So also His primacy over everything is taught. ‘I am not in them,’ namely, I do not ‘depend’ on them for My existence. There is no help derived from them for My existence.
Author Name:-Sri Adi Shankaracharya
Sri Adi Shankaracharya
9.4 Idam, this; sarvam, whole; jagat, world; is tatam, pervaded; maya, by Me; through the supreme nature, that I have, avyakta-murtina, in My unmanifest form, in that form in which My nature is not manifest, i.e. in My form which is beyond the range of the organs. Sarva-bhutani, all beings, from Brahma to a clump of grass; matsthani, exist in Me, are established in Me in that unmanifest form. For, no created thing that is bereft of the Self (i.e. of Reality) can be conceived of as an object of practical use. Therefore, being possessed of their reality through Me who am their Self, they exist in Me. Hence they are said to be established in Me. I Myself am the Self of those created things. Consequently, it appears to people of little understanding that I dwell in them. Hence I say: Na ca aham, but I am not; avasthitah, contained; tesu, in them, in the created things. Since unlike gross objects I am not in contact with anything, therefore I am certainly the inmost core even of space. For, a thing that has no contact with anything cannot exist like something contained in a receptacle. For this very reason that I am not in contact with anyting-
Author Name:-Sri Madhvacharya
Again in this verse Lord Krishna discourses on the unmanifest state of the brahman or spiritual substratum pervading all existence.