The word cleansing can conceal a fairly stark fact: vamana involves intentionally inducing vomiting. Translating the action plainly helps a reader understand why a historical account should not be used as a set of instructions. It also matters when someone is asked to consent to a programme described only in soothing language.
A testimonial that someone felt lighter afterwards does not show that a disease was treated or a toxin removed. Vomiting can involve loss of fluid and the risk of material entering the airway. A person should not try to induce it at home, including after a suspected poisoning; seek urgent professional guidance for that situation.
In a reading group, compare the headline of a retreat advertisement with its description of what actually happens. Can the reader identify the intervention without knowing Sanskrit? If not, the missing translation matters more than any promise on the cover.
Further reading: Panchakarma terminology (Ministry of Ayush annual report) · Detox and cleanse claims (NCCIH)