Thailand is nearly 94%-95% Theravada Buddhist (which includes the Thai Forest Tradition and the Dhammayuttika Nikaya and Santi Asoke sects), with minorities of Muslims (5-6%), Christians (1%), Mahayana Buddhists, and other religions.[2] Thai Theravada Buddhism is supported and overseen by the government, with monks receiving a number of government benefits, such as free use of the public transportation infrastructure.
Buddhism in Thailand is strongly influenced by traditional beliefs regarding ancestral and natural spirits, which have been incorporated into Buddhist cosmology. Most Thai people install spirit houses, miniature wooden houses outside their dwellings, where they believe household spirits live. They present offerings of food and drink to these spirits to keep them happy. If these spirits aren't happy, it is believed that they will inhabit the household and cause chaos. These spirit houses can be found in public places and on the streets of Thailand, where the public make offerings. [3]
Prior to the rise of Theravada Buddhism, both Indian Brahmanic religion and Mahayana Buddhism were present in Thailand. Influences from both these traditions can still be seen in present-day Thai folklore. Brahmanist shrines play an important role in Thai folk religion, and the Mahayana Buddhist influence is reflected in the presence of figures like Lokesvara, a form of the bodhisattva Avalokitesvara sometimes incorporated into Thailand's iconography.[3][4]