Hanuman is a central character in the Indian epic Ramayana and its various versions. He is also mentioned in several other texts, including Mahabharata, the various Puranas and some Jain texts. A vanara, Hanuman participated in Rama's war against the demon king Ravana. Several texts also present him as an incarnation of Lord Shiva. He is the son of Kesari, and is also described as the son of Vayu, who according to several stories, played a role in his birth.