I see. So paccupaṭṭhita sati can be understood as the effort a sekha makes to become an arahant, particularly in relation to bahidda vinnana. It is more upgraded version of indriya samvaro(not using indriya as ayatana).
Q. I’m curious about why there’s an arrow drawn from bahidda vinnana to arahant phala citta in the chart ‘Purana and Nava Kamma -4’.
with metta