Using an external stimulus such as a steady, repetitive tone or drum, to help the brainwaves synchronize to a frequency known to get specific responses.
Readers, please enjoy this guest blog post by Matthew Ash McKernan, author of the new Wyrdcraft.
The weird, wild, and wonderful English psych-rock band Hawkwind said it well in their song, "We Took the Wrong Step Years Ago." What this "wrong...