Most people are familiar with the four brain states that govern mood and cognition - beta, alpha, theta and delta. Recently, a fifth brainwave state was added to that list - gamma waves. Researched in cooperation with His Holiness the Dalai Lama, scientists studied the brainwave states of Tibetan monks in deep states of meditation and found that their brainwaves had a frequency of 40 hz, with waves that were highly organized and coordinated. This powerful program from Dr. Jeffrey Thompson was designed to be the perfect atmosphere for eliciting gamma frequency brainwaves. The harmonic ambience of the recording is slow and very spacious, providing a space ideal for those seeking very deep levels of meditation and thought.