Doc Lew Childre from the Institute of Heart Math in America found out, that the heart in a state of love vibrates at a fundamental frequency of 8 Hz. This is also the main resonance frequency of the earth, the so-called Schumann-wave and the beginning of alpha waves in the brain. The latter rule in a state of relaxed alertness. A loving heart, a relaxed mind and the electromagnetic vibration system of the earth are thus, literally, on the same wavelength. (From: Esotera 6 / 99) The CD "brain & heart tuning" has so consistently the fundamental frequency of 8 Hz information