The fatigue and pain experienced in physical training creates crisis in one’s mind. STOP. REST. GO EASY. These are normal and expected thoughts. What is not normal and what the mind does not expect is for a person to push harder when these thoughts arise. Your mind does not expect you to Go Farther…
The mind, so focused on ending the pain, is sent reeling when the pain increases. It must adapt. The pain has gotten worse. WORSE.
But you push forward again. And again. You are now dragging your mind, kicking and screaming, as you push on. Go Farther. Your mind must adapt, change its habits. It must become stronger.
Habitually exposing the mind to discomfort, going farther time and time again when the mind screams to stop, will build a durable mind.