The causal body is the last book in the series that examines the finer bodies or vehicles of man, which are: Etheric, Astral, Mental, Causal. However, there is a fundamental difference compared to the previous ones, which is that while the previous books examine the mortal bodies of the human inner essence, that is, those that last for only one incarnation, this one examines the body that is maintained for a large part of the normal evolution of man. This body transcends the limits of personality, which uses the lower bodies (Mental, Astral, Etheric, Physical) as tools and is part of the true human. Also, the need for a more complete understanding drives the author to examine even higher centers of consciousness, such as that of the Monad, resulting in the field in which the present book moves being extremely broad and the author's effort illuminating aspects of evolution that are far beyond the daily consciousness of man. This is precisely why this book is an essential read for the student who, following his inner voice, seeks knowledge of the 'true life'. [Excerpt from publisher or edition presentation text]