Yaksha Kingdom refers to the territory of a category of mythical creatures called Yakshas who were one of the mythological beings of ancient Sri Lanka. They had kinship with another more ferocious category of beings, the Rakshasas. The King of Yakshas, Vaisravana (also known as Kubera, Kuvera, Bishamon-ten etc.) and the Rakshasa king, Ravana, were both sons of the sage Vishrava, son of the great Rishi Pulastya from two different wives. Kubera is sometimes mentioned as a Rakshasa king. Kubera ruled a Yaksha kingdom of enormous wealth. Pandavas visited this place during their forest life with the help of the Rakshasa Ghatotkacha and his friends.