According to certain Buddhist and Hindu traditions, secret tunnels connect Tibet with a subterranean paradise, and they call this legendary underworld Agartha or Shambhala. throughout the world, from South America to the Arctic, numerous entrances to these inner kingdoms. Many occult organizations, esoteric authors, and secret societies concur with these legends of subterranean inhabitants, who are the remnants of antediluvian civilizations, which dwell in massive hollow caverns inside the earth.