This is clear, desana. I have gone through lot of Abhidarmaya ,because of that Very easy to understand.However according to Lord Buddhas teaching 2600 years ago , in Upanisa sutraya ,I will explain eradication of Ashrava is only to those who knows about origin and cessation of Panchaupadanaskandays.This great monk is making that simple for us. Sadu.Sadu.Sadu. Theruvan sarani.