Since he came into consciousness after injuring his head, Galen had always felt like something was stirring inside of him.
When Varya opened the door to their past and unleashed so many memories for him, the stirring inside of him became anger and each day was becoming more of a battle to contain it.
He thought that Emperor Kruos's defeat would have solved what he was feeling, but it seemed to only push the inevitable. He was worried he was going to irreparably explode one day and hurt the people around him.
The only time he felt like there was any relief was the few chances he was able to use his fire aura. When he had a fireball lit up in his hands he felt like the anger was slowly seeping out of him.
With the discovery that fire was the cure for his madness, he wondered if there was more he should know about the fire aura he possessed. With Varya's permission, he was able to access more materials about the history of Planet Basileus and the people he came from.