There standing in one place, the entire world, divided in many ways, The son of Pandu (Pāṇḍava) saw then, in the body of the God of gods (Devadeva).
Arjuna saw all the universe in its many ways and parts, standing as one in the body of the god of gods.
(13) Then did the son of Pandu see the whole [wide] universe in One converged, there in the body of the God of gods, yet divided out in multiplicity.
11.13 At that time, Pāṇḍava saw there, in the body of the God of gods, the whole diversely differentiated Universe united in the one (Cosmic form).
11.13 There (in that form) Arjuna beheld the whole universe, with its manifold divisions gathered together in one single spot within the body of the God of gods.
11.13 There, in the body of the God of gods, Arjuna then saw the whole universe resting in one, with its many groups.