The unnamed half-female form of Shiva is also alluded to in the epic "Mahabharata". In Book XIII, Upamanyu praises Shiva rhetorically asking if there is anyone else whose half-body is shared by his spouse, and adds that the universe had risen from the union of sexes, as represented by Shiva's half-female form. In some narratives, Shiva is described as dark and fair-complexioned, half yellow and half white, half woman and half man, and both woman and man. In Book XIII, Shiva preaches to Parvati that half of his body is made up of her body.