In this verse Arjuna identifies Krishna with the great natural forces which are responsible for creating the world around us -Vayu, Yama, Agni, Varuna, the moon, the creator. He is even mentioning Krishna to be the great grandfather. By these descriptions Arjuna points that the conciousness is the source and cause of all the natural forces like Air , Governors of the world . Fire and the water gods and alongwith the moon .
There are the broad cosmic forces which are the constituents of the environment around us .It is the combination of Air , Water ,Fire and there governing forces alongwith moon which have the highest influence on the environment of the earth . Even this environment is nothing but construct which are build out from the fundamental consciousness, which is referred as great grandfather .
Arjuna as a divine warrior could understand the entire play of this consciousness and energy, and there underlying oneness, and that’s why he is saluting repeteadly , this inner principle of play between consciousness and energy .By this he is surrendering to an higher ideal and moving towards a the direction of spiritual progress in life .