is not expected or required to adhere to Wicca or other forms of paganism should they not wish to do so when they reach adulthood. Book of Shadows In Wicca, there is no set sacred text such as the Christian Bible, Jewish Tanakh, or Islamic Quran, although there are certain scriptures and texts that various traditions hold to be important and influence their beliefs and practices. Gerald Gardner used a book containing many different texts in his covens, known as the Book of Shadows (among other names), which he would frequently add to and adapt. In his Book of Shadows, there are texts taken from various sources, including Charles Godfrey Leland's Aradia, or the Gospel of the Witches (1899) and the works of 19th–20th century occultist Aleister Crowley, whom Gardner knew personally. Also in the Book are examples of poetry largely composed by Gardner and his High Priestess Doreen Valiente, the most notable of which is the Charge of the Goddess. Similar in use to the grimoires of ceremonial magicians, the Book contained instructions for how to perform rituals and spells, as well as religious poetry and chants like Eko Eko Azarak to use in those rituals. Gardner's original intention was that every copy of the book would be different because a student would copy from their initiators, but changing things which they felt to be personally ineffective, however amongst many Gardnerian Witches today, particularly in the United States, all copies of the Book are kept identical to the version that the High Priestess Monique Wilson copied from Gardner, with nothing being altered. The Book of Shadows was originally meant to be kept a secret from non-initiates into BTW, but parts of the Book have been published by authors including Charles Cardell, Lady Sheba, Janet Farrar and Stewart Farrar. Symbolism The pentacle is a symbol commonly used by Wiccans. Wiccans often understand the pentacle's five points as representing each of the five elements: earth, air, fire, water, and aether/spirit. It is also regarded as a symbol of the human, with the five points representing the head, arms, and legs. Structure There is no overarching organisational structure to Wicca. In Wicca, all practitioners are considered to be priests and priestesses. Wicca generally requires a ritual of initiation. Traditions In the 1950s through to the 1970s, when the Wiccan movement was largely confined to lineaged groups such as Gardnerian Wicca and Alexandrian