Among the Mentawai, health is understood as balance — between body and soul, between humans and the forest, between the living and the unseen.
When illness appears, it is rarely viewed as physical cause alone. Something has shifted, wandered, or been disturbed.
The kerei are guardians of this balance — healers, mediators, and interpreters of the spiritual landscape.
Understanding Illness
A kerei looks beyond symptoms.
He asks:
– Has the person’s soul (simagere) wandered?
– Has a spirit been offended?
– Has a taboo been broken?
– Has an object, plant, or animal transmitted harmful bajou (vital force)?
– Has another soul influenced the patient during sleep?
Every diagnosis is relational — an inquiry into how the patient’s inner and outer worlds have moved out of harmony.
Healing Through Ritual
The heart of healing is reconciliation.
Through chanting, invocations, and offerings, the kerei negotiates with the spirit world to restore balance.
He may stroke a chicken along the patient’s body to absorb illness; he may use plants as mediators to send petitions across realms; he may address wandering souls and call them home.
A healing ritual often includes the sacrifice of a chicken or pig, whose soul carries the request into the unseen and returns with a response — later read in the veins of the animal.
Healing Through Plants
The forest is the kerei’s pharmacy.
He knows hundreds of medicinal species — which leaves reduce fever, which roots stop bleeding, which barks calm stomach pains, which vines ease childbirth or muscle strain.
These remedies are prepared as poultices, infusions, compresses, or smoke baths.
But plant medicine is never taken casually.
Before cutting or picking, the kerei addresses the plant’s soul, explains the purpose, and asks permission. A healing plant works only when its soul agrees to help.
The remedy therefore carries both physical and spiritual potency.
Healing as Relationship
For the Mentawai, healing is not a transaction but a relationship.
A patient may owe thanks to the spirits, corrections to his behavior, or apologies to offended souls.
Healing often requires changes in conduct, renewed care for one’s soul, and alignment with taboos that maintain balance.
In this way, the kerei does not cure illness alone — he restores harmony.
And in restoring harmony, he protects not just the patient, but the community, the forest, and the unseen forces that surround them.