Sacrifice
Sacrifice
It was clear that he had the sacrifice mentality to devote his life without fear of his death for his country. While the ground battles had the Joseon forces with substantial damages, but the naval battles orchestrated by Yi sun-shin had only minor damages since the Joseon naval forces were able to accept the sacrifice in their way of encountering the battles.
While serving the country as a commoner, Yi sun-shin lost his mother, and after appointed as the Commander again, he lost his son in deep grief. However, in spite of his terrible heartache, he had the unyielding courage and endurance to defeat the enemy and save his country with all his devotion. Furthermore, he took his men to take rest at night and he always was the man to take on the dirty and tough works for others.
As such, Chungmugong displayed true mentality of sacrifice to love his men with his difficulties not enough to reach to the pains of his subordinates.