Chapter 11: The Universal Form
kalo 'smi loka-ksaya-krt pravrddho
lokan samahartum iha pravrttah
rte 'pi tvam na bhavisyanti sarve
ye 'vasthitah pratyanikesu yodhah
sri bhagavan uvaca—the Personality of Godhead said; kalah—time; asmi—I am; loka—the worlds; ksaya-krt—destroyer; pravrddhah—to engage; lokan—all people; samahartum—to destroy; iha—in this world; pravrttah—to engage; rte api—without even; tvam—you; na—never; bhavisyanti—will be; sarve—all; ye—who; avasthitah—situated; pratyanikesu—on the opposite side; yodhah—the soldiers.
The Blessed Lord said: Time I am, destroyer of the worlds, and I have come to engage all people. With the exception of you [the Pandavas], all the soldiers here on both sides will be slain.
Although Arjuna knew that Krsna was his friend and the Supreme Personality of Godhead, he was nonetheless puzzled by the various forms exhibited by Krsna. Therefore he asked further about the actual mission of this devastating force. It is written in the Vedas that the Supreme Truth destroys everything, even Brahma. Yasya brahme ca ksatram ca ubhe bhavata odanah/mrtyur yasyopasecanam ka ittha veda yatra sah. Eventually all the brahmanas, ksatriyas and everyone else are devoured by the Supreme. This form of the Supreme Lord is an all-devouring giant, and here Krsna presents Himself in that form of all-devouring time. Except for a few Pandavas, everyone who was present in that battlefield would be devoured by Him.
Arjuna was not in favor of the fight, and he thought it was better not to fight; then there would be no frustration. In reply, the Lord is saying that even if he did not fight, every one of them would be destroyed, for that is His plan. If he stopped fighting, they would die in another way. Death cannot be checked, even if he did not fight. In fact, they were already dead. Time is destruction, and all manifestations are to be vanquished by the desire of the Supreme Lord. That is the law of nature.