The brain generates weak electrical impulses representative of its particular activities. As recorded by the electro-encephalograph (EEG), they fall into particular levels assigned Greek letters.
Beta, at 14 to 28 cycles per second, is our normal waking state including focused attention, concentration, thinking, etc.
Alpha, 8 to 13 cycles, is the next level down characteristic of relaxation, alert receptivity, meditation and access to the subconscious mind. It is at 8 cycles per second, the border between alpha and theta, that Trance occurs.
Theta, 4 to 7, is lower yet and occurs just before (hypnopompic) or after (hypnagogic) sleep and is characteristic of light sleep, deep meditation, dreaming, vivid imagery, and high levels of inner awareness.
Delta, 1 to 3, is characteristic of deep dreamless sleep.
0 to 0.5 is the state of death or unconsciousness.
The Language of Tarot by Jeannie Reed
The Language of Tarot is in some ways quite revolutionary. The author, Jeanne Reed, is not afraid to make clear, bold statements, both in her tarot readings and in her way of teaching tarot. These...