The ritual is done at least 20 times, with months or years between each session, taking 10 to 30 minutes. The ones that pass through it all are accepted as warriors and future leaders
https://pib.socioambiental.org/en/Povo:Sateré_Mawé
https://en.wikipedia.org/wiki/Mawé_people
https://en.wikipedia.org/wiki/Paraponera_clavata (bullet ant)
You known what? I’m okay with not being a warrior or leader of the Sataré-Mawé.