“It is the power of my knowledge, the strength of my character, and the energy of my soul.”
"But Vasudeva, your own might is greater than your Narayani army." "You speak rightly, King Duryodhana. In all this world the only weapons as mighty as my Sudarshan Chakra are the trident (trishul) of Mahadeva and the thunderbolt (vajra) of Indra. At its stroke not only men but even the gods are filled with dread.
Chapter 30 of 35 — a single teaching, 2 min in total.
Before the war, both sides come to Krishna. He offers a choice: his Narayani army on one side, and himself on the other — unarmed, and refusing to fight. Duryodhana takes the army and is pleased with the bargain. Arjuna takes the charioteer.
The Sudarshan chakra, the discus Krishna is depicted with, sits in the background of that choice: the power is real and available and is deliberately not what is on offer. What Arjuna receives instead is the conversation that becomes the Gita.