In this volume, André Luiz unveils the secrets of reincarnation, revealing the task of missionary spirits in charge of the rebirth process. The spirit author affirms that physical death is not the end. He also stresses the importance of self-effort in the struggle for self-improvement. In twenty chapters, he talks about his continued learning experience in the spirit world, the perispirit as a living body that molds the material cells, reincarnation guided by high order spirits, and the different aspects of mediumistic manifestations. Missionaries of the Light teaches that Divine Providence Always grants people new arenas of work through the incessant renewal of life by means of reincarnation.