This chapter clearly explains the various forms of Bhagavan Sri Krishna, everything is Bhagavan Sri Krishna, and Arjuna's fear to see the terrible form.
Arjuna praises Bhagavan Sri Krishna and states that his delusion is disappeared by the words said by Bhagavan Sri Krishna.
Further, Arjuna says that All are Bhagavan Sri Krishna.
He requests Bhagavan Sri Krishna to show him the various forms of Bhagavan Sri Krishna.
Bhagavan Sri Krishna shows his various forms to Arjuna.
Arjuna initially becomes happy; but he fears seeing the terrible form of Bhagavan Sri Krishna.
Eventually, Bhagavan Sri Krishna gets back to his human form that pleases Arjuna.