Vishnu sahasranamam, slok4o

Slok40:     Viksharo  Rohitho  Margo Hethur DAmoDaraha  sahaha
                   MaheeDharo  MahAbhAgo VegavAn  AmithAsenaha

The  Imperishable,  the brillience in Sun,  the path to understand the Cause of cosmic play,  the 

entity containing unmeasurable quantities of Fire in the stomach, the Friend,
The  sustainer (beholder )of Earth, the largest  part of the universe,  the  entity with great velocity, and the vast arena in the macrocosm, is sree Maha Vishnu. 

Vishnu is not perishable, means undepletable. This attribute is applied to  "Atma", in Gita, Sankhya yoga. In second line of the slok, Vishnu is depicted as a cosmic  arena. The vast, unmeasurable space of the universe, is defined as Vishnu. This brillient field ef Divinity, with great Vitality and Mind is Vishnu, the  sustainer  of this planet.

In this slok, the second line picturises Vishnu as a gaint spiritual field with exponential quantity of 
Fire in it's core and moving with high velocity. " Sahaha" implies the friendly nature of Vishnu, 
the mind of the field. Whatever exists inside the zone of Vishnu, is saved with protection.
So, Vishnu guards earth and earthly beings. This is Vishnu.

Vishnu is Omnipotent, Omniscient, Omnipresent.

Om Vishnave namaha