This science fiction novel differs greatly from many others I have read before, focusing not on future technological advancements, but on the social and psychological changes of humanity after such advancements.
The story can be interpreted on two levels.
One is the religious level, examining the influence and control methods of Hinduism, Buddhism, and Christianity on individuals, as well as the struggles between religions.
The second is the human nature level, where technological advancements allow consciousness to be transferred to different bodies, approaching a state of immortality or divinity. Those who master the technology control others through religious models, living a paradise-like life. However, each person's pursuit of life is different; some value diverse life experiences, enjoying different lives through consciousness transfer to various bodies (or reincarnation); some prioritize emotional connections, wishing to be with their loved ones across lifetimes, regardless of the body; others focus on aesthetics, hoping to see more beautiful environments, lives, and social models, even risking their lives to fight against evil forces; and some place importance on competition, striving to be superior to others in any aspect.