As well as pantheism and duotheism, many Wiccans accept the concept of polytheism, thereby believing that there are many different deities. Some accept the view espoused by the occultist Dion Fortune that "all gods are one god, and all goddesses are one goddess" – that is that the gods and goddesses of all cultures are, respectively, aspects of one supernal God and Goddess. With this mindset, a Wiccan may regard the Germanic Ēostre, Hindu Kali, and Catholic Virgin Mary each as manifestations of one supreme Goddess and likewise, the Celtic Cernunnos, the ancient Greek Dionysus and the Judeo-Christian Yahweh as aspects of a single, archetypal god. A more strictly polytheistic approach holds the various goddesses and gods to be separate and distinct entities in their own right. The Wiccan writers Janet Farrar and Gavin Bone have postulated that Wicca is becoming more polytheistic as it matures, tending to embrace a more traditionally pagan worldview. Some Wiccans conceive of deities not as literal personalities but as metaphorical archetypes or thoughtforms, thereby technically allowing them to be atheists. Such a view was purported by the High Priestess Vivianne Crowley, herself a psychologist, who considered the Wiccan deities to be Jungian archetypes that existed within the subconscious that could be evoked in ritual. It was for this reason that she said that "The Goddess and God manifest to us in dream and vision."