Vishnu sahasranamam, slok77

Slok77:     Viswamurthyr Mahaamurthyhi Deepthamurthy ramurthymaan
                   Anekamurthy ravyakyathaha Sathamurthy SsathAnanaha


The Universal form, the Great Grand form, the Illuminating form, the Formless, the Unmanifest manifested in multiple forms, The one with hundreds of forms and hundreds of faces, is Sree Maha Vishnu.

This slok describes Vishnu as a " Transcendental  Illumination", present everywhere in everything. That " Illumination" is manifestation of " Devine consciousness ".
Because Vishnu  is Omnipresent, manifests in any form, anywhere as per His will and wish.  Vishnu, Invisibly exists in everything, everywhere without our knowledge.

This aspect of Omnipresence is proved by Bhakth Prahlad in Krutayuga itself.

PrahlaD was Hari bhakth. His father HiraNya kasyap was against Hari.He doesn't like

PrahlaD worshipping his dislike, Hari. Hence, asked PrahlaD to show Hari in the pillar stood 

infront of him. When HiraNyKasyap hit the pillor, that broke opened.; Hari appeared

in NarasimhAvatAr, i.e. A lion headed Vishnu. Killed Hiranyakasyap and blessed  PrahlaD.

Vishnu proved His Omnipresence, even in an inanimate.

VISHNU, the "Universal   Invisible " exhibits His Devine presence, as  "Transcendental LIGHT " all over the thrilokas.
Yes. That is VISHNU.  

The Unmanifest manifest, the Invisible Visible, the Formless Form, and the Infinite finite is sree Maha Vishnu.

                                 Om Vishnave namaha