Vraegar had been in a special state since the moment he woke up, it was one of intense hunger. He had always experienced a variety of hunger in his life but this one was different, it was primal, something that he craved with every fiber of his being, and the only thing that kept him sane was the presence of his omnipotent father in his mind.
Rowan's words exceeded any discomfort he was feeling, and the fear of going against his father's wishes held Vraegar back from falling into his baser instinct. The young Empyrean Dragon needed a firm guiding hand as a juvenile, and he was lucky he had a strong father like Rowan or he would have fallen into depravity.
His body had digested all the powers from the Tribulation and judging by his present size he had benefited a lot.