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.
Congratulations to these Llewellyn titles as 2024 COVR Awards finalists!
Your Guide to Self-Discovery, by Georgina Cannon et al (Anthologies)
Tea Magic, by Jenay Marontate (Divination Books)
Ancestral Whispers, by Ben Stimpson (Folk...