Transubstantiation from Toshiyuki Namai to his disciple is smoothly and beautifully realized through experiencing the two, both 1)"cleaning activity of Ginzashosai-nyuukyobiru" and 2)"learning activity in Quasi-Ginza sanctuary."
"Cleaning activity of Ginzashosai-nyuukyobiru" totally covers all the matters including "the significance of learning activity in Quasi-Ginza sanctuary." This is a very fundamental idea Toshiyuki Namai's disciples thoroughly need to recognize and understand for the sake of the realization of their ideal transubstantiation.
Uncleanliness in your heart unfortunately guides you to fatally misunderstand the above-mentioned idea. Conversely, cleanliness in your heart reasonably guides you to fully understand the idea.
It is true that uncleanliness in your heart awfully derives from self-centered ego at all times. Similarly, greed in your heart derives from self-centered ego, too. If and when you are facing and experiencing the two, 1)"uncleanliness" and 2)"greed," the best wat for your solution is "to rectify your self-centered ego" and "to get rid of it."
T Toshiyuki Namai repeatedly emphasize that self-centered ego is the one unnecessarily poisoned. There is nothing good in having it yourself. Self-centered ego inevitably disturbs transubstantiation you absolutely need as my disciple.