What is unicursal heptagram?

The unicursal heptagram is a seven-pointed star with a single unbroken line that connects all of the points. It is a symbol that has been used in various contexts, including spiritual and mystical traditions, as well as in art and architecture. The unicursal heptagram is often associated with the seven classical planets in astrology, and it is said to represent a balance of the elements of fire, water, earth, and air, as well as the spiritual elements of soul, spirit, and mind. It is also used as a sigil or emblem in some mystical and occult practices. The unicursal heptagram has been used in various forms of art and design, such as ornamentation on buildings and furniture, as well as in jewelry and other decorative items.