Balinese Hinduism (Indonesian: Hindu Dharma) is the form of Hinduism practiced by the majority of the population of Bali. This is particularly associated with the Balinese people residing on the island and represents a distinct form of Hindu worship incorporating local animism, ancestor worship or Pitru Paksha and reverence for Buddhist saints or Bodhisattava. Although the population of Indonesia is predominantly Muslim and Christian, 83% of the people on Bali identify as Hindu.
Origins of Hinduism in Indonesia can be traced back to at least 5th century BC. It was gradually replaced by Buddhism, which was the main religion of Sumatra and Java, until it in turn was displaced by the coming of Islam from the 14th century CE. However, due to balinese entrenched culture of isolationism and the system of state religion pre-colonial Dutch Bali became the only part of Indonesia to remain predominantly Hindu. The populations of the islands off the east coast of Bali are also mostly Hindu, and there are Hindu villages scattered near the eastern shore of Java.
The fundamental principle underlying Hinduism is that there is order in the cosmos, known as dharma. There is also a disordering force, adharma. Hindus seek balance and harmony between these two forces, thus freeing themselves from the never-ending cycle of reincarnation, attaining a state called moksa.
Balinese Hinduism divides the cosmos into three layers. The highest level is heaven, or suarga, the abode of the gods. Next is the world of man, buwah. Below this is hell or bhur, where the demons live and where people's spirits are punished for misdeeds on earth. This tripartite division is mirrored in the human body (head, body and feet) and the shrines found outside Balinese buildings.