In novels, blood and soul were usually regarded as different concepts, and they often had different meanings and functions in different plots. In some novels, bloodline was considered a hereditary, unique ability or characteristic that could be passed down through inheritance or family inheritance. This bloodline was often associated with a specific ability, skill, or race and was seen as the pride and advantage of the family or race. On the other hand, the soul was considered a deeper spiritual entity. It was a person's essence and characteristics, which could be determined by personal experience, beliefs, family education, and many other factors. In some novels, the soul may be regarded as the most important thing in a person's life. It can influence a person's behavior, choices, and destiny. In some novels, the bloodline and soul might be inherited at the same time. For example, a person could obtain specific abilities or characteristics by inheriting their family bloodline and passing on their family soul. In this case, bloodline and soul were considered as a whole that determined a person's abilities and characteristics. In novels, the concepts of blood and soul usually changed according to the needs of the story. They could be independent of each other, inherited at the same time, or even associated with a specific race or family. These changes in concepts could greatly affect the plot, characters, and theme of the novel.