in the ancient folk mythology, it's a genius living in forests. Kubera, chief of all the Yakshas, is the deity of underground treasures. Many times, Yakshas are represented as door-guards of buddhist shrines; in that case, they are similar to the dvârapâla of hindu temples. So, they are Asura or Râkshasa demons. However, they obey Shiva as His servants, like the Gana