Friday the 13th... a time to honor the deep, sacred (and even forbidden) feminine. Before patriarchal times, Friday the 13th was considered the day of the Goddess. It was considered a. day to worship the Divine Feminine, who lives in us all, and to honor the cycles of creation, death, and rebirth. Friday the 13th was considered a very powerful day to manifest, honor creativity, and celebrate beauty, wisdom, and nourishment of the soul. The number 13 also possesses an extremely potent feminine energy and is considered to be the number of death and rebirth, creation, fertility, and blood. This is because we have 13 Moon cycles every year, and the average female also experiences 13 periods per year.