"Yes, you said it just right. Ascendants have a very short life span. When our "Willpower" is completely gone, we start to die quickly. It's indeed an unfair condition to have the power to fight against monsters like the Abyssal King right here but lose it. Nature acts just like this, whatsoever..."
Dean just lowered his head before the words of that man. Ascendant's trap was something that he didn't want to think about.
Of course, he was just being a coward. That was part of an Ascendant's life, after all. He couldn't just run away from this and expect that he would get rid of that fact. Anyway, that fate was so cruel that he wasn't able to face it.
The old man watched that expression on Dean's face and sympathized with him. He also needed to go through such times when he would think about his unavoidable fate and get depressed.