Choose a topic to write. A self-help book can be written about anything that helps someone else accomplish a goal or overcome an obstacle in his or her own life. It's best to write from experience when deciding on a self-help topic. The more you know about a topic, the more authoritative you can be in dealing with the material. The best self-help books contain the wisdom of having actually worked for the author's own personal life.
Create an outline. Decide how you will write the book and how to organize the information you want to convey. As a personal narrative, many self-help books often take the form of a journey. It can also be a collection of anecdotes about your daily living experiences. This is where you lay out how the metaphysical aspect plays into your personal experience and how you will translate that to the reader.
Introduce yourself on the same plane as everyone else by writing the section of the book that presents you as having a problem. . This is where you are a regular person with an issue that you wanted to overcome. Write in an informal, easy to read tone so that the reader relates to you.
Explain what made you decide to change, or improve, your life. In a fictional narrative, this would be known as the catalyst moment. The same principle applies in non-fiction self-help book. Because you are taking the reader on a journey of personal experience, you want to clarify what the moment was that made you want to change your life. For some people this is "hitting bottom," for others it is simply an "aha" moment where you sit up one morning, take a close look at your life and decide that you want to change it. In a metaphysical self-help book, this could have been simply a feeling, or a voice, that told you it was time to change your life.
Recount what you did to change or improve your life. This is where the metaphysical aspect of the book will come through the strongest. It is likely a metaphysical exploration that allowed you to change your life. Perhaps you used an astrological road map to make changes. Or maybe you used crystal therapy to put your brain on a different wavelength and correct harmful behavior. In a metaphysical self-help book, you can write about anything you feel helped you. It is likely going to be very subjective, but that is the point. Whatever worked for you might also work for someone else.
Summarize your results and how your ideas can work for the reader. Aside from explaining the approach you took to improve your life, explain how the reader can do the same. Go into detailed process about how to implement astrology, crystal therapy, or prayer and meditation into his or her life. Write with an inspirational tone that makes the reader feel good. The goal is for the reader to believe that your experience relates to him or her in a profound enough way that he can follow the same path with success.