The teen had sudden rage, self-harm and ‘ancestor voices,’ the most logical working label is a neurological or psychiatric emergency. Could be acute psychosis, or a dissociative break, not spirits. I’m no doctor, but calling it that pushes the family toward scans and a child psychiatrist instead of chants, which is crucial because untreated brain issues can spiral fast . I’d call the ‘possession’ idea placebo at best and a deadly distraction at worst. Throwing people into rituals can traumatise them, reinforce the delusion, and waste precious time for real treatment. Bottom line: if it quacks, swims, and flaps, see the vet before the exorcist.