Plate 27: Talisman to vitalize the kidneys (kidneys symbolize the female sex organs). The two shapes suggest a pair of female dancers with yin receptacles emphasized.
As testimony to human anxiety, Taoist magic is much concerned with immortality, or at any rate with the desire for a long and sexually active life. These life-giving talismans seem to have been used in many different ways, including burial ceremonies, but they all relate to a spiritual power.
From: Tao Magic: The Secret Language of Diagrams & Calligraphy, Laslo Legeza, 1975