Arjuna’s reaction is one of total physical and mental shock. He is ‘Vismayāviṣṭa’—overwhelmed with wonder—and his hair is literally standing on end (‘Hṛṣṭa-romā’). The sheer scale of the vision has crushed his ego. He instinctively bows his head and folds his hands in the gesture of total surrender. This is the shift from ‘Sakhya’ (Friendship) to ‘Vandana’ (Worship). Arjuna can no longer treat Kṛṣṇa as a casual peer. The weight of the Divine Presence forces him into a state of deep reverence. He is shaking with a mixture of fear, ecstasy, and awe. He begins to speak, but his voice is no longer confident; it is the voice of a devotee who has just seen the Heart of the World. This verse shows that real spiritual experience is not a dry intellectual realization; it is a visceral, body-shaking event that brings one to their knees.