A word is "not a simply word" for your teacher, Toshiyuki Namai.
A word for me is "just life" itself. All words not only cerebrally but divinely spoken are derived from the nucleus of my life. Hence, you disciples have what is called "spiritual vibration" in the inner part of your heart as the very matter of reality.
What you received shall be chewed and assimilated by you all deliciously. If you are chewing and assimilating those given deliciously, those shall be yours.
Obviously, learning though transubstantiation from your teacher, Toshiyuki Namai to you disciples is the best way to reach the ultimate here on earth. There is no other possible way to realize the same.