The seven vowels which we use every day in speech depend on the
phenomenon of harmonics which is at the very basis of music. When we
hear vowels we are hearing the laws of harmony which are ultimately the
laws of number that are said to govern the universe. This is the first
book on the subject to appear in English and brings together the fields
of linguistics harmony, mythology, history of religions, and occult
philosophy. Scholarly, yet practical, this book gives instructions for
discovering one's own healing, centering, and uplifting tones.