Two emotions pull Arjuna in opposite directions. He is thrilled — genuinely delighted — to have witnessed something no mortal has ever seen. At the same time, his mind is shaking with fear. Awe and terror sit side by side, and neither one gives way.
It is like standing at the edge of a great waterfall. The beauty takes your breath away. But the roar, the sheer force of the water, the mist rising hundreds of feet — these remind you that you are very, very small. You are glad you came. But you also want to step back to solid ground.
And so Arjuna makes his request plainly: show me that earlier form. The one I know. The one with the gentle face and the familiar smile. He calls Krishna 'Devesha' (Lord of the gods) and 'Jagannivasa' (the dwelling place of the universe) — grand titles, spoken with the voice of someone who desperately wants the grand to become gentle again.