Experience deep levels of physical and emotional comfort with this highly effective 10-point system of total relaxation. With Guide to Serenity you can achieve profound states of inner peace and calm and learn to recreate such states whenever you wish. Use Guide to Serenity to restore your strength and vitality. Hemi-Sync? sound patterns support progressive states of relaxation until you drift gently into a natural, refreshing sleep. (Mind Food - Verbal)