ਤੇਰੇ ਬੋਲ ਹਰਫ਼ ਜਿਉ ਮੇਰੇ ਦੇਵੇ ਅੰਦਰ ਗਾਵਾਹੀ

This line goes a level deeper. It’s no longer about cleansing, but about inner validation. The beloved’s words don’t stay external—they become evidence within the speaker’s own being.
“ਗਾਵਾਹੀ” (testimony) is important: it implies certainty, not belief. The meaning is: what you say becomes self-evident inside me. No external confirmation is needed—the truth is now experienced directly within.