A pentacle is a five-pointed star, often enclosed in a circle, that is commonly associated with various spiritual and religious practices. It is frequently used in Wicca and other forms of paganism as a symbol of protection and the elements: earth, air, fire, water, and spirit. The pentacle represents the connection between the physical and spiritual worlds. In addition to its spiritual significance, the pentacle has historical roots in alchemy and hermeticism. It has been used in various cultures as a symbol of balance and harmony. The shape of the pentacle can also be found in geometry, where it is studied for its mathematical properties.