Intentionally generating and swallowing saliva has many benefits to help maintain health. In conjunction with meditation, saliva can be mixed with the energy generated through a meditation practice.
Taoist masters practices massaging the gums and teeth with the tongue to generate saliva. This can soothe a sore throat, help the teeth become strong, and lubricants the digestive system.
Regularly swallowing saliva helps cool the heart and nourish the skin. Further, swallowing saliva cools the system, and helps the body sleep.