These are lines of unseen energy that cross the earth. When the lines intersect, an energy vortex is formed. Ancient mystical sites are said to be built on such vortex points, and they attract non-physical entities. Homes or buildings near these points are more likely to be haunted than are other locations.
Readers, please enjoy this guest blog post by Sandra Kynes, author of several books, including The Herb Gardener's Essential Guide, Plant Magic, and the new Witches' Encyclopedia of Magical Plants, among many others.
Although a few old books...