What guarantees are there that participating in therapy groups will not lead to psychological damage?

According to Osho, there’s no risk of psychological damage in his therapy groups because the real damage has already been inflicted by society’s conditioning; the groups don’t impose new beliefs but systematically uncondition you, reversing the shift from content to pure consciousness. By stripping away ideologies, ambitions, and identities, they help you recover your natural witnessing awareness, so participation cannot harm you—its whole function is to undo harm.