God’s display of His horrific form in Chapter 11 of The Gita departs from the philosophical tone of rest of this teaching. It is reminiscent of great epics peopled with demons, and goddesses and heroes or even of fairy tales filled with goblins and angels.
Some have wondered why this jolting interlude is included in the otherwise mostly calm, well reasoned, uplifting sacred holy text that is believed to come to us God Himself.
In my view, the inclusion of a vivid illustration of God’s awesome destructive power could not be skipped. God is Time, who perpetually transforms worlds and creates them anew in our universe and in universes light years away.
See The Gita, A New Translation of Hindu Sacred Scripture by Irina Gajjar