The Mo Pai tradition is known for its secrecy. Historically, many English-language documents circulated online (such as drafts of training manuals or translations of student notes) were intentionally altered. Authors often inserted deliberate errors, "blind" techniques (incorrect methods meant to mislead uninitiated readers), or metaphorical language that is difficult to interpret without a teacher.
If you’ve downloaded a Mo Pai PDF recently, you might have run into a frustrating problem: mo pai pdf fix