Found mainly in Malaysia's Kelantan state and neighbouring areas of southern Thailand -- cradles of traditional Malay culture -- main puteri is an animated healing spectacle that draws on a range of local cultural touchstones and legendary figures to "raise the spirits" of patients.
It has been driven nearly underground by authorities in the rapidly modernising Muslim-majority country as a heathen relic of a pre-Islamic past.
But many Malays -- the country's majority group -- see main puteri as a slice of their heritage increasingly needed in an emotionally challenging modern world, and are working to revive it.
Main puteri revolves around the belief that depression, chronic fatigue, and other emotional or psychological problems stem from disturbances in metaphysical forces.
- Playing princess -
"We raised her spirits again. She is like a commander or chieftain, who are hot-blooded," shaman Zailani Che Moh, 48, said of Che Esa's now-restored inner essence.
Main puteri literally means "playing princess," believed to refer to Puteri Saadong, a legendary 17th-century Kelantan princess driven insane by her husband's marital infidelities.
Her spirit is now said to watch over Kelantan and she is regularly invoked as the ultimate emotionally troubled main puteri patient.
But conservative Islam has steadily gained sway in the historically moderate country, and religious bodies have issued edicts forbidding a range of animist spiritual practices as idolatrous.
Kelantan, in the largely rural Islamic heartland of peninsular Malaysia's east coast, has gone even further since an Islamist party won state power in 1990, banning several traditions including main puteri. Violators face up to a year in jail.
"In main puteri, there is worship of other beings. In Islam, we only worship Allah," said Nassuruddin Daud, Kelantan's minister in charge of Islam.
Practitioners were driven underground or to other states, where sanitised versions are performed.
But pure main puteri as a healing tradition is gradually re-emerging in Kelantan villages, a rebirth that authorities appear to be quietly tolerating so as not trigger a public backlash.
Sarong-clad shaman, or "tok puteri" ("master of the princess"), diagnose patients with the help of a musician who plays a traditional Malay fiddle and acts as an interrogator as the holy man enters a trance-like state.
Shaman like Zailani -- called "snake man" for his contortions -- twist and dance around, acting out a mix of legendary or traditional characters such as Puteri Saadong.
His tone veers from sorrow to mocking to aggressive as he scuffles with the patient before breaking into song, trying to find the approach that will "heal" a particular sufferer.
Some patients claim the ceremony magically restores their zest for life.
- Getting a second wind -
Ironically, suppression is boosting main puteri, said Eddin Khoo, founder of Pusaka, an NGO that works to document and protect traditional Malay arts.
Most people seeking main puteri healing today are said to be Muslim women who feel marginalised after losing their matriarchal influence to Islamic conservatism.
The banning of such centuries-old beliefs "was a shock," and main puteri is today once again performed regularly in Kelantan villages, he said.
"Ironically, with all the stresses of the state, and laws and proscriptions, people need the tradition even more," Khoo said.
Main puteri does not clash with Islam, but fills a vital mystical role that modern medicine cannot, said Hasnah Mat Jusoh, 49, matriarch of Che Esa's village, herself a devout Muslim.
"If the patient goes to see a doctor, they won't find an illness. Even the doctor will say 'go to your village shaman'," she said.
Adds Zailani: "Skin, muscle, sinew, blood, mucus, fat; those who are too fat, too big, have high blood pressure, or diabetes; those are under the doctor's prerogative."
"Under the shaman: earth, water, fire, wind."
But decades of Muslim pressure have depleted the ranks of tok puteri.
Zailani, whose father and grandfather were tok puteri, said many aspiring shaman lack the patience or talent.
Pusaka is helping other shamans regain their footing and take on apprentices.
"I have shaman blood. You can't copy it. This ability has to be innate in you and has to be there from the beginning," Zailani said.
"It won't go extinct, because there is no one who doesn't have wind. Only shamans can find your wind."