Advocates of the Taoist Sexual Practices believe that the Yoni (in this case, the vaginal canal) contains so-called reflex points or acupoints, that is, points and zones (areas) that reflect or mirror our internal organs, such as the lungs, heart, kidneys, and liver, among other organs. The ideas behind this are part of the broader reflexology paradigm.
In fact, different zones in the vaginal canal would relate to different organs. For instance, the entrance of the Yoni and G-Spot area relate to the kidneys, and the far end of the vaginal canal near the cervix relates to the lungs and heart.
Thus, by manipulating specific reflex zones, it’s thought that we can stimulate and improve the healthy function of our internal organs. Of course, we can do this with our fingers, or with a Yoni Wand, but it’s also common to use a Yoni Egg to apply acupressure on specific acupoints.
A practiced Yoni Egg user can direct the Yoni Egg at will to give pressure on the zone(s) she wants to work on. Nevertheless, simply having the Yoni Egg inside already gives pressure on a range of reflex points. As such, reflexology massage i.e. acupressure is done automatically, benefitting every woman who carries the egg, even without doing specific exercises.