Vito Brain Theta level, the monks did not sleep but rather were mentally alert. 4- Brain : One of the best stimuli for brainwaves is brain . Pulses of sound or light, repeated at same intervals will create brain electrical response, and this is called Brainwave (or BWE). This means if an external stimulus is applied to the brain, the brainwaves of the brain will change or "entrained" from one state to another.…