If they could tell you, they would.
If you haven't seen it, no amount of talking will do anything but confuse you - except the admonition to sit, relax, and stop looking for something.
If you have seen it, there's really no reason to talk.
Every (good) book written about it is just another clever obstacle or admonition.
A message-less message - always the same, yet manifested in near infinite variety.