Who was he referring to when he wrote that ghosts and demons were superior to others and that he was greedy and cruel?

This sentence came from a famous line in the online novel " Battle Through the Heavens." The character in the novel was called Xiao Yan. While he was practicing a power called "Soul Power", he continuously wrote about ghosts and demons to improve his writing ability and eventually became a genius writer. The '30% of greed and torture to the bone' referred to the difficulties and challenges that Xiao Yan had encountered during the process of training his Soul Power. The meaning of this sentence was that Xiao Yan needed to think deeply and dig out the inner feelings and contradictions of the characters in the process of writing. It required an extremely high level of observation and writing ability.