The Yoni egg is a polished stone in the shape of an egg, created to be inserted into your vagina. Yoni eggs cause emotional, sexual, physical, and spiritual transformation and healing. As an alternative to common kegel exercises, you may strengthen your vaginal muscles, Benefits include: decreased incontinence, toning post-childbirth, increased orgasms, increased libido and awakened sensuality, increased natural lubrication, increased sensitivity during intercourse, and more.