Puri in 810 AD, and since then it has become an important dham (divine centre) for the Hindus; the others being those at Sringeri, Dwarka and Jyotirmath. The Matha (monastery of various Hindu sects) is headed by Jagatguru Shankarachrya. It is a local belief about these dhams that Vishnu takes his dinner at Puri, has his bath at Rameshwaram, spends the night at Dwarka and does penance at Badrinath. In the 16th century, Chaitanya Mahaprabhu of Bengal established the Bhakti movements of India, now known by the name the Hare Krishna movement. He spent many years as a devotee of Jagannatha at Puri; he is said to have merged with the deity. There is also a matha of Chaitanya Mahaprabhu here known as Radhakanta Math. In the 17th century, for the sailors sailing on the east coast of India, the temple served as a landmark, being located in a plaza in the centre of the city, which they called the "White Pagoda" while the Konark Sun Temple, away to the east of Puri, was known as the "Black Pagoda". The iconic representation of the images in the Jagannath temple is believed to be the forms derived from the worship made by the tribal groups of Sabaras belonging to northern Odisha. These images are replaced at regular intervals as the wood deteriorates. This replacement is a special event carried out ritualistically by special group of carpenters. The city has many other Mathas as well. The Emar Matha was founded by the Tamil Vaishnava saint Ramanujacharya in the 12th century AD. This Matha, which is now located in front of Simhadvara across the eastern corner of the Jagannath Temple, is reported to have been built in the 16th century during the reign of kings of Suryavamsi Gajapatis. The Matha was in the news on 25 February 2011 for the large cache of 522 silver slabs unearthed from a closed chamber. The British conquered Orissa in 1803, and, recognising the importance of the Jagannath Temple in the life of the people of the state, they initially appointed an official to look after the temple's affairs and later declared the temple as part of a district. Modern history In 1906, Sri Yukteswar, an exponent of Kriya Yoga and a resident of Puri, established an ashram, a spiritual training center, named "Karar Ashram" in Puri. He died on 9 March 1936 and his body is