Just like a radio tunes into electromagnetic waves in the atmosphere and converts the waves into music, a dowser uses a tool such as a dowsing rod or a pendulum to act like the indicator light on the radio dial to help indicate where a ley line is located. There are a number of books on ley lines besides Secrets of Sacred Space by Chuck Pettis. Dowsing by Tom Graves and The View Over Atlantis , by John Michell. They have chapters all over the U.S., many of which study Earth energies. Environmental art is a major international art movement that has been recognized within the arts community for at least the last 20 years.
Environmental art involves the environment as a design element in the final artwork.
It includes an artwork and a site or space that are united into a single entity. There are two primary ways of healing the Earth via Earth energies. One is to neutralize the effects of negative energies, and the other is to add positive vibrations to neutral or positive spaces. When underground water gets polluted, it creates a negative field which can affect health and cause disease. A power center can have a negative feeling if negative emotions or events have occurred at the site.