C136 Qi is optional meaning to control qi(part i)

Feng Lin could endure it, but Changmen Niepo could not. Endure, sometimes taking a step back is like taking a step into the ocean and the sky. However, this sort of tolerance did not mean that one would always be forced to take a step back to become as vast as the sea and the sky. Today, if he had tolerated it and retreated, he would not have been as vast as the sea and the sky