what is there ever to be ashamed of, page-12

Very interesting. By "proven", I assume you mean that you're enlightened. Is that what you're saying? Or do you mean that it's proven by someone else? I've asked you this a few times and no response. That must mean you feel personal shame in your lack of "attainments". The word shame derives from a much earlier word meaning 'to hide' or 'cover'.

The only problem with "attaining stages" is that there needs to be an "I" to do the attaining. There's a very real reason Buddhist adherents rarely become enlightened. If it happens at all it's usually by accident.