Seongcheol's parinirvana gatha Seongcheol's parinirvana gatha reads:


  Deceiving people all my life, my sins outweigh Mount Sumeru.
  
  Falling into hell alive, my grief divides into ten thousand pieces.
  
  Spouting forth a red wheel,
  
  It hangs on the blue mountain.


Has anyone written about what this means? I see that Seongcheol had this explanation


  I've lived my entire life as a practitioner, and people have always
  asked me for something. Everyone is already a Buddha, but they do not
  try to realize that fact and only look towards me. So, in a way, you
  could say I've deceived people all my life. I've failed to get this
  message across to everyone so I'm suffering in a kind of hell.


But I wonder if it is definitive? 

You read people who think it's an admission that he's wasted his "entire life", whereas I thought it could be a statement about "saving all sentient beings".
My understanding of this is as follows;

Illusion is impure, but a water wave is beyond purity and impurity;

May I be reborn in a hell to purify it and save the living beings there.