महाणुभागे महावीरे, जियसत्तू जियिंदिए ॥12.1॥
Of great power, great heroism — he has conquered his enemies and conquered his senses.
Mahavira opens Chapter 12 by introducing the monk who has completed the inner battle. The "enemies" conquered here are not outside — they are the four great passions that live inside every human mind: anger, pride, deceit, and greed. In Jain teaching, these four passions are the engines that keep producing karma, and karma is what keeps the soul locked into the cycle of rebirth. The "senses" conquered are the five gateways — sight, sound, smell, taste, and touch — through which the world enters and attachment forms. Most monks are working hard to control these; the great monk has moved past the struggle entirely. He is not enduring hardship like a beginner — he has systematically taken apart the entire mechanism of bondage, piece by piece, passion by passion, sense by sense. This is why he is called "great": not because of external achievement, but because of what has been dismantled inside.
The simple version: The great monk has done the inner work all the way through. He has conquered both the outer distractions and the inner passions.