Barbara Brennan has written two very popular books in metaphysical schools of thought. She is one of the first people to write a text book level study guide on the chakras, the auras and healing techniques for those systems, thus affecting the physical conditions. Her books are called Hands Of Light (1988) and Light Emerging (1993). The guide she channels is called Heyoan. Brennan once worked for NASA and is a well educated scientist. Her contributions to the field of metaphysics will forever become mainstays in the metaphysical field. Below is a excerpt from her guide Heyoan.

"Let fear be your ally. Fear has a great deal to teach you. Fear is the experience of being disconnected from who you truly are; it is the opposite of love. Fear can be an ally if you allow it to be, and just say, I'm afraid. In continually doing this, you begin to see that you are not fear itself, but that fear rather is a feeling… These feelings are based on a great many assumptions of what might happen. Most fear is not of what is happening now but of what might be. If you are able to stay in the moment, fear will not find you. Fear is the projection of something that has happened in the past, into the future, through a large magnifying glass. So when you are in fear, you are not in reality."

"If you fear poverty, then your actions arising out of that fear—trying to stop personal poverty—will help create poverty on a world scale. Your fear helps maintain the mass belief in poverty. This mass belief in poverty causes a backlash reaction in which everyone strives to get more and keep it for themselves. This greed leads to the struggle for economic gain that has, in turn, brought about the impoverishment of the world's resources. This creates more poverty and holds it in place in the physical world."

"The things you most abhor and fear are the very things that you create… Greed is based on the fear of not having enough. What appears to be greed is really a result of fear of poverty. That, in turn, creates poverty… Make a list of your 'wants.' You will find that many of them are designed to make you feel safe, which they can never do. Now ask yourself, "Which of these wants do I wish to create from my higher consciousness based on my positive belief system?"