tatrakastham jagatkritsnam pravibhaktamanekadhaa |
apashyaddevedasya shareere paandavastadaa || 13 ||

Then, the Paandava saw the entire universe with many divisions located in one place in the body of that lord of lords.
tatra : that
ekastham : located in one place
jagat : universe
kritsnam : entire
pravibhaktam : with many divisions
anekadhaa : several
apashyat : saw
devedasya : lord of lords
shareere : in the body
paandavaha : the Paandava
tadaa : then
Previously, Arjuna was overwhelmed by the sheer vastness of Ishvara’s cosmic form. There was so much going on, so many shapes and forms, that he did not know where to look. He took some time to get accustomed to the radiance emitted from that form. Now that his vision became a little clearer, he saw the entire universe with the earth, the sky, the oceans, animals, plants, trees and humans in one tiny corner of that vast cosmic form.
Sant Jnyanadeva provides some illustrations to convey the how small the universe looked. It was like a few atoms on Mount Meru, a few bubbles in the vast ocean and an ant-hill on planet earth. Such was the vastness of the cosmic form that even our universe looked puny. In the Srimad Bhagavatam, we see a similar description. Yashoda saw herself and her village in a tiny corner of the universe that was situated in the yawning toddler Shri Krishna’s mouth.
In this shloka, Arjuna quite literally saw “the big picture”. Like us, he was concerned and preoccupied with his problems, his challenges and his worries. He now came face to face with “ananta koti brahmanda naayaka”, the lord of an infinite number of universes. When Arjuna saw Ishvara’s cosmic form, he realized that the universe is nothing but a small fraction of Ishvara’s creation. The tiny wave realized how huge the ocean really is.