Isan traditional knowledge is a collection of processes that have arisen from the effects of geography, history and
cultural process mixed with knowledge and experimentation. Isan traditional knowledge is divided into
prevention and cure and uses natural, supernatural and spiritual methods. Isan people believe in spirits, of which
Pi Taen and Pi Fa Paya Taen are the most powerful in creating earth, water, wind, fire, world and humanity. The
nearest spirits to home are Pi Bu Ta, who are spirits of dead ancestors that come to take care of their descendants.
The Isan people will create small shrines for the spirits in the holy forests (called Ba Bu Ta) near their homes.
Aside from this, Isan people also believe in the presence of spirits and there are ceremonies to call the spirits to
provide energy and assistance in certain matters and with certain illnesses.