Far in the future, human beings have learned to use ninety percent of their brains. Although the population is greatly decreased, due to things like war, famine, and disease, death is no longer a problem. Humans have evolved and can now exist as nothing but pure energy. The world is no longer a place of boundaries, and human beings can no longer be hurt. They have no need of internal organs or food, and they do not fear death. Some stay on Earth, but most travel through space by the power of their minds. They seek other planets, other species, and other places to live in case Earth should fail. The inhabitants of other worlds are a constant surprise to humans, and they soon realize there is always more to learn. People travel to experience new things but also to spread the message of peace. Earth has found harmony; when humans seek it elsewhere, will it be found, or are other planets not ready to evolve?