Sodasa 3. Sodasi (Shodasi) is a maiden of sixteen (years of age) and represents totality, youth, vigor, and perfection. She goes by another name, Tripurasundari. Tri+Pura+Sundari = Three + City + Beauty. Three cities = the three realms of heaven, earth, and air. She is Tripura because her body is made of three Saktis: Brahma, Vaisnavi, and Raudri. The three cities are a metaphor for man with three qualities: Sattva, Raja and Tamas (virtue, motion and passion, lethargy). She is the transcendent beauty of three cities or three gunas or the three cities of the demons. http://www.bhagavadgitausa.com/TANTRA.htm