@Bird-of-Paradise. @Martin, @karl_lew …
Thank you for this insightful discussion, which I have been following for the last 1 week… there was indeed much said that was deep, worthy of contemplation.
Regarding the kind of vinnana aggregate possessed by the Arahant and the question of “Is the Vinnana aggregate freed or does it disappear” … I have a semi-formed notion that I would like to submit for your scrutiny. (Please do forgive me for butting in- I wouldn’t want to be like Hatthisariputta!)
Why are we approaching the question only from the angle of Vinnana aggregate (part of Nama/dyad)? Why not approach it from the other end of Rupa aggregate (part of Rupa/dyad)?
Or to rephrase the question…
What is the rupa (if any) of the Realized one / Arahant while he is still alive?
SN44.1
"Is there any accountant or finger-tallier or reckoner who can count the grains of sand in the Ganges, that is, how many grains of sand there are, how many hundreds or thousands or hundreds of thousands of grains of sand?”
…
“In the same way, great king, any form by which a Realized One might be described has been cut off at the root, made like a palm stump, obliterated, and unable to arise in the future. A Realized One is freed from reckoning in terms of form.
SN44.2
“So, Anurādha, you should truly see any kind of form at all—past, future, or present; internal or external; coarse or fine; inferior or superior; far or near: all form—with right understanding: ‘This is not mine, I am not this, this is not my self.’
What do you think, Anurādha? Do you regard the Realized One as form?”
“What do you think, Anurādha? Do you regard the Realized One as in form?”
“Or do you regard the Realized One as distinct from form?”
“What do you think, Anurādha? Do you regard the Realized One as possessing form?
“What do you think, Anurādha? Do you regard the Realized One as one who is without form?
“No, sir.”
“In that case, Anurādha, since you don’t acknowledge the Realized One as a genuine fact in the present life, is it appropriate to declare…
SN44.4
“Reverend, not truly knowing and seeing form, its origin, its cessation, and the practice that leads to its cessation, one thinks…
Therefore, the Realized one is not his body. There is obviously a body there …alive, eating, walking, talking, responding… there is contact, feeling, perception, volition and conciousness of that body process still operative, arising and passing away continuously, based on contact. But from the perspective of ‘behind the eyes’ of the Realized One, these are just impersonal constantly changing processes to which there is neither attraction nor rejection, since they are known for what they are… just Dukkha arising and passing away, with absolutely no sense of Self Identification, ceasing finally at Parinibbana.
AN10.7
"One perception arose and another perception ceased in me: ‘The cessation of existence is nibbāna; the cessation of existence is nibbāna.’ Just as, when a fire of twigs is burning, one flame arises and another flame ceases, so one perception arose and another perception ceased in me: ‘The cessation of existence is nibbāna; the cessation of existence is nibbāna.’ On that occasion, friend, I was percipient: ‘The cessation of existence is nibbāna.’”
So, the correct answer to the question “what kind of Rupa/ Vinnana aggregate is possessed by the Arahant ?” would be - The Arahant does not possess any aggregate, since ‘he’ exists outside the framework of the aggregates. However, while the Arahant’s body processes are still active, the aggregates associated with that body process can be viewed, if required, dispassionately and without any form of Self Identification, as constantly arising and passing away in accordance with Dhamma viz. Iddapaccaya. On the final ending of the body process, all the aggregates including Vinnana cease. ‘The Arahant’, being outside the framework of the aggregates to begin with, is now finally released…but how to describe that (un) condition?
Wild guess…
The mainframe on which the program of Samsara runs?