The warrior of light knows that everyone is afraid of everyone else.
This fear generally manifests in two ways: through aggression or through submission. They are two facets of the same problem.
That is why, whenever he finds himself before someone who fills him with fear, the warrior reminds himself that the other person has the same insecurities as he has. He has surmounted similar obstacles and experienced the same problems.
But he knows how to deal with the situation better. Why? Because he uses fear as an engine, not as a brake.
The warrior learns from his opponents and acts in a like manner.
Taken from The Manual of the Warrior of Light by Paulo Coelho.