Arjuna was not able to acknowledge the directions while watching such gigantic form of Divine-God, because direction is known in reference with Sun-rise and Sun-set but here Sun and Moon are within the eyes of Divine-God and all around of the mammoth Divine-Body there is great bright light glittering (11/12) which has no rise or set/fall.

I am unable to recognize directions and attend calm while watching Your Mouths which is like Pralay-Kal fire along with dreaded bears. Therefore, O Devesh! O Jagniwash! You please become happy. (Bhagwat-Gita: 11/25)

The Kalagni or Savtark is fire which causes parlay or appears for destruction of three worlds. The mouths of Divine-God are looking like Kalagni, which is appearing mammoth along with dreaded and variety of bears, causing horror. When you will understand the function of those you will easily know that no one can face them.

Arjuna was not able to acknowledge the directions while watching such gigantic form of Divine-God, because direction is known in reference with Sun-rise and Sun-set but here Sun and moon are within the eyes of Divine-God and all around the mammoth Divine-Body there is great bright light glittering (11/12) which has no rise or set/fall. Therefore, Arjuna was not able to recognize the directions and while viewing Grant Mouths he is losing peace and cheerfulness.

Divine-God is master and cause of all Demi-Gods and entire worlds inhabited upon Him. Therefore, any Demi-God or creature out of fear will call Divine-God only. Hence, Arjuna is calling Divine-God and praying “O Formless! O Existing Everywhere! You be happy”.

While watching aggressive grand Divine-Form, Arjuna thought that Divine-God has become very annoyed. With this feeling frightened Arjuna is praying to Divine-God to become calm and happy.