Vishnu sahasranamam, slok58

Slok58:        MahAvarAho  Govindaha  susheNaha  Kanakaangadee
                      Guhyo  Gabheero  Gahano  Gupthaschakra  GaDADharaha

The great VarahAvathaar, the Krishna, the Exceptional Beauty, the Golden hued shining body,  the  Celestial Misterious Secret,  the Skylike entity,  the Invisible, ( the Concealed)  and the one holds a Diskus and Mace, is Sree Maha Vishnu.

Here, in this slok, two incarnations of VISHNU are refered.
One is VarahAvathar, the second is  Sree Krishnavathar.

In VarahAvatar, Vishnu manifested animal faced human, to save the earth from  the demon"HiraNyaksha".

Vishnu is a scintillating golden coloured beatiful devine field, which cannot
be seen by ordinary.  Vishnu is a celestial secret, an unpenetratable spiritual arena.  No one knows, when this energised field has formed. This is a Devine Secret. 
SuDarsana chakra  and  KowmoDaki  are VISHNU 's invisible weapons. Vishnu is a Celestial Secret, an unpenetratable invisible divinity.
Only sacred spiritual pure souls can alone experience Vishnu.

Om Vishnave namaha