He don’t have any material to offer, He can only bow my head as gesture of respect and “Pranam” greeted, which signify that he offered himself to Div

Arjuna was surprised watching universal Form of Divine-God, his body was filled with thrill. He stated folding hands and bowing head viewing Universal form of Divine-God. (Bhagwat-Gita: 11/14}

Arjuna was astonished by viewing form of Divine-God which he had never imagined on such subject of Divine-form. Arjuna was excited and pleased that on mercy Divine-God has talk about his extraordinary spiritual message thereafter has shown his extraordinary Divine-Form.

Arjuna was in deep though after watching extraordinary grate Divine-Form that how he should give thanks to Divine-God? He don’t have any material to offer, He can only bow my head as gesture of  respect and “Pranam” greeted, which signify that he offered himself to Divine-God. Therefore folding hands bowing head respectfully Arjuna started praising element of Divine-God