Nonduality isn't about special teachings and teachers. It's accessible to all because we are it. I've chosen a few quotes from fiction author Chuck Palahniuk (precisely because he's not typically called out as a "spiritual" teacher nor mystic) that resonate:
Reality means you live until you die. The real truth is nobody wants reality.
People don't want their lives fixed. Nobody wants their problems solved. Their dramas. Their distractions. Their stories resolved. Their messed cleaned up. Because what would they have left? Just the big scary unknown.
We are not special. We are not crap or trash, either. We just are. We just are, and what happens just happens.