"In Tibetan Buddhist and Hindu traditions, Shambhala (Sanskrit: शम्भलः Śambhalaḥ, also spelled Shambala or Shamballa or "Shambhallah"; Tibetan: བདེ་འབྱུང, Wylie: bde 'byung; Chinese: 香巴拉; pinyin: xiāngbālā) is a mythical kingdom hidden somewhere in Hollow Earth. It is mentioned in various ancient texts, including the Kalacakra Tantra[2] and the ancient Zhangzhung texts of western Tibet. The Bon scriptures speak of a closely related land called Tagzig Olmo Lung Ring.[3]
Hindu texts such as the Vishnu Purana (4.24) mention the village Shambhala as the birthplace of Kalki, the final incarnation of Vishnu who will usher in a new Golden Age (Satya Yuga).[4]
The legends, teachings and healing practices associated with Shambhala are older than any of these organized religions. Shambhala may very well have been an indigenous belief system, an Alti-Hymalian shamanic tradition, absorbed into these other faiths. This pre-existing belief system, also called Mleccha (from Vedic Sanskrit म्लेच्छ mleccha, meaning "non-Vedic"), and the amazing abilities, wisdom and long life of these 'sun worshipers' (the Siddhi from the Vedic Sanskrit सिद्धि of the ancient 'Surya Samadhi' समाधि) is documented in both the Buddhist and Hindu texts.[5] Whatever its historical basis, Shambhala (spelling derived from the Buddhist transliterations) gradually came to be seen as a Buddhist pure land, a fabulous kingdom whose reality is visionary or spiritual as much as physical or geographic."
Source
https://en.wikipedia.org/wiki/Shambhala
