In Hinduism and Tibetan Buddhist tradition, Shambhala (Sanskrit: शम्भलः Śambhalaḥ, also spelled Shambala or Shamballa; Tibetan: བདེ་འབྱུང, Wylie: Bde'byung; Chinese: 香巴拉; pinyin: Xiāngbālā) is a mythical kingdom. The kingdom is said to be laid out in precisely the same form as an eight-petalled lotus blossom surrounded by a chain of snow mountains. At the centre is the palace of the King of Shambala who governed from the city called Kalapa. Shambhala is also often called Shangri-la in some texts. 
Shambhala is mentioned in various ancient texts, including the Bhavishya Purana, Kalacakra Tantra and the ancient Zhangzhung texts of western Tibet. The Bon scriptures speak of a closely related land called Tagzig Olmo Lung Ring.
In the Buddhist Kalachakra teachings
Shambhala is ruled over by Maitreya, the future Buddha. The Kalacakra tantra prophesies that when the world declines into war and greed, and all is lost, the 25th Kalki king will emerge from Shambhala with a huge army to vanquish "Dark Forces" and usher in a worldwide Golden Age. Using calculations from the Kalachakra Tantra, Alex Berzin puts this date at 2424.
Manjuśrīkīrti is said to have been born in 159 BC and ruled over a kingdom of 300,510 followers of the Mlechha religion, some of whom worshipped the sun. He is said to have expelled 20,000 people from his domain who clung to 'Surya Samadhi' (sun realization) rather than convert to Kalachakra (Wheel of Time) Buddhism.
These expelled Rishis, seers, sages and saints, who had realized truth and eternal knowledge exclaimed, "We want to remain true to our Sun-Chariot. We do not wish to give up our belief system to change to another." This shows there may have been a fundamental difference between the 2 time-cycle-based doctrines. After realizing these were the wisest and best of his people and how much he was in need of them, he later asked them to return. Some did. Those who did not return were said to have set up another magical city elsewhere, the Shambhallah of mystic legend. Manjuśrīkīrti initiated the preaching of the Kalachakra teachings in order to try to convert those who returned and all still under his rule. In 59 BC he abdicated his throne to his son, Puṇḍārika, and died soon afterward, entering the sambhogakaya of buddhahood and was made a posthumous Buddhist saint.
Western receptions and interpretations
Some westerners have been fascinated with the idea of Shambhala, often based on fragmentary accounts from the Kalachakra tradition. Tibet and its ancient traditions were largely unknown to westerners until the twentieth century; whatever little information westerners received was haphazard at best.
The first information that reached western civilization about Shambhala came from the Portuguese Catholic missionary Estêvão Cacella, who had heard about Shambhala (which he transcribed as "Xembala"), and thought it was another name for Cathay or China. In 1627 they headed to Tashilhunpo, the seat of the Panchen Lama and, discovering their mistake, returned to India.
The Hungarian scholar Sándor Kőrösi Csoma, writing in 1833, provided the first geographic account of "a fabulous country in the north...situated between 45' and 50' north latitude". Due north from India to between these latitudes is eastern Kazakhstan, which is characterized by green hills, low mountains, rivers, and lakes. This is in contrast to the landscape of the provinces of Tibet and Xinjiang in western China, which are high mountains and arid.
During the late-19th century, Theosophical Society co-founder Helena Blavatsky alluded to the Shambhala myth, giving it currency for Western occult enthusiasts. Blavatsky, who claimed to be in contact with a Great White Lodge of Himalayan Adepts, mentions Shambhala in several places, but without giving it especially great emphasis.
Later esoteric writers further emphasized and elaborated on the concept of a hidden land inhabited by a hidden mystic brotherhood whose members labor for the good of humanity. Alice A. Bailey claims Shamballa (her spelling) is an extra-dimensional or spiritual reality on the etheric plane, a spiritual centre where the governing deity of Earth, Sanat Kumara, dwells as the highest Avatar of the Planetary Logos of Earth, and is said to be an expression of the Will of God.
Inspired by Theosophical lore and several visiting Mongol lamas, Gleb Bokii, the chief Bolshevik cryptographer and one of the bosses of the Soviet secret police, along with his writer friend Alexander Barchenko, embarked on a quest for Shambhala, in an attempt to merge Kalachakra-tantra and ideas of Communism in the 1920s. Among other things, in a secret laboratory affiliated with the secret police, Bokii and Barchenko experimented with Buddhist spiritual techniques to try to find a key for engineering perfect communist human beings. They contemplated a special expedition to Inner Asia to retrieve the wisdom of Shambhala – the project fell through as a result of intrigues within the Soviet intelligence service, as well as rival efforts of the Soviet Foreign Commissariat that sent its own expedition to Tibet in 1924.
French Buddhist Alexandra David-Néel associated Shambhala with Balkh in present-day Afghanistan, also offering the Persian Sham-i-Bala, "elevated candle" as an etymology of its name. In a similar vein, the Gurdjieffian J. G. Bennett published speculation that Shambalha was Shams-i-Balkh, a Bactrian sun temple.
In Western culture
Shambhala may have been the inspiration for Shangri-La, a paradise on Earth hidden in a Tibetan valley, which features in the 1933 novel Lost Horizon by British author James Hilton. There is also a Yu-Gi-Oh! trading card game deck called “subterror” that uses the lore of Shambala in cards such as “The Hidden City” and defenders that protect the city from dangerous “behemoths.”
In Don Rosa's Treasure of the ten Avatars(Uncle Scrooge Adventures#51) the protagonists lead an expedition to Shambhala. The inhabitants made sophisticated Hydraulic traps that scared troops of Alexander the Great.
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