"To suppress pain and stay calm under extreme pressure."
In Eastern warrior culture, this single character carries the weight of ultimate discipline. It is the mental armor you wear when stepping into the gym or the ring.
The Upper Part: 刃 (Blade) — Represents the sharp edge of a sword, symbolizing the external pain, fatigue, and heavy weight crushing down on you.
The Lower Part: 心 (Heart) — Represents your mind, soul, and inner sanctuary.
The Ultimate Philosophy: To hold a razor-sharp blade directly over your heart, yet remain absolutely still, focused, and unyielding. That is true mental strength.