Aromatherapy Functions in Chinese Medicine Rectifies Liver Qi; Quells the Liver; and Normalizes the Hun/Perspective: nervous depression and anxiety, frustration, unexpressed anger, mood swings, insomnia, addictive behavior from nervousness; nervous indigestion, loss of appetite, colic, intestinal parasites. Frees the Spirit; Fortifies the Po/Instinct: heals emotional wounds during times of sadness or grieving so that one is more able to reach out to others.