Devotee: Is Kṣīrodakaśāyī Viṣṇu present in non-living entities, like rocks, matter?
Prabhupāda: Yes, even in the atom.
Devotee: In His four-armed form like...
Prabhupāda: Oh yes. Wherever He lives, He lives in His own paraphernalia. Aṇor aṇīyān mahato mahīyān. He's the biggest than the biggest, and He's smallest than the smallest. That is Viṣṇu. Aṇḍāntara-stha-paramāṇu-cayāntara-stham (Bs. 5.35). Paramāṇu means atom. You cannot see even atom, how small. He is within that atom. He's everywhere.