The warriors of light aren't always sure of what they're doing. They vey often spent their nights wide awake, thinking their life is meaningless. This is why they're warriors of light. Because they make mistakes. Because they constantly put questions to themselves. Because they search a reason: and they'll certainly fing it.
The warrior of light has learnt that God uses solitude to teach cohabitation. He uses rage to show the infinite value of peace. He uses tediousness to underline the importance of adventure and abandonment.
God uses silence to give a teaching on the responsability of words.
He uses tiredness so to understand the importance of awakening. He uses illness to underline the blessing of health.
God uses fire to give a lesson on water. He uses Earth so to understand the importance of air. He uses death to show the importance of life.