Longan Berry is a great tonic herb for the Heart! Consumption of it can boost up your emotional state fast. This is because of its works through the heart meridian. Longan builds the blood primarily through its actions with the Spleen meridian.works to sooth the Shen which the Heart houses. In TCM, there are 7 emotions: Anger Fear Fright Grief Joy Worry and Pensiveness Each emotion is linked to a certain organ. Certain involuntary actions related to each emotion such as sobbing, sighing, excessive laughter, facial expressions, etc., are a reflection of persons shen. Longan has traditionally been used to help relax a person through its actions on the shen. Longan is also very rich in antioxidants because of its large amounts of procyanide and tannins. These antioxidants are one of the primary means that it works so well as a beauty herb. Traditionally, Longan has been considered to be a primer women’s beauty herb.