Triple Goddess (Neopaganism) other female reproductive processes — are ways that women may embody the Goddess, making the physical body sacred. The triple goddess sign is identified with Greek moon goddesses: Helen Berger writes that "according to believers, this echoing of women's life stages allowed women to identify with deity in a way that had not been possible since the advent of patriarchal religions." The Church of All Worlds is one example of a neopagan organization which identifies the Triple Goddess as symbolizing a "fertility cycle". This model is also supposed to encompass a personification of all the characteristics and potential of every
Dynamics of the celestial spheres Dynamics of the celestial spheres Ancient, medieval and Renaissance astronomers and philosophers developed many different theories about the dynamics of the celestial spheres. They explained the motions of the various nested spheres in terms of the materials of which they were made, external movers such as celestial intelligences, and internal movers such as motive souls or impressed forces. Most of these models were qualitative, although a few of them incorporated quantitative analyses that related speed, motive force and resistance. In considering the physics of the celestial spheres, scholars followed two different views about the material composition of the celestial spheres.