Approximately 95% of Cambodia's population follows Theravada Buddhism, heavily influenced by Shaivism and Vaishnavism and by animism, with Islam, Christianity, and tribal animism making up the bulk of the remainder. The wat (Buddhist monastery) and Sangha (monkhood), together with essential Buddhist doctrines such as reincarnation and the accumulation of merit, are at the centre of religious life, but interact with indigenous beliefs such as the central role of ancestors and spirits.