One of the four brain wave patterns, the delta state is typified by patterns that repeat at the speed of .5-3 Hertz (cycles per second). People in deep sleep or who are unconscious are in the delta state. It is also the speed of the brainwaves typified by some forms of very deep meditation. The other brain wave patterns are alpha, beta, and theta.
Readers, please enjoy this guest blog post by Tudorbeth, author of The Hedgewitch's Little Library, including the latest release in the series, The Hedgewitch's Little Book of Crystal Spells.
When people catch the crystal bug, they think they...