"A noble disciple understands vinnana, its origin, its cessation, and the practice that leads to its cessation. But what is vinnana? What is its origin, its cessation, and the practice that leads to its cessation? There are these six classes of vinnana. Eye, ear, nose, tongue, body, and mind vinnana. Vinnana originates from sankhara. Vinnana ceases when sankharas cease. The practice that leads to the cessation of vinnnna is simply this noble eightfold path …”
I think MN9 here contains an explanation of Paticca Samuppada in which vinnana does not refer to rebirth-consciousness but just to the six classes of vinnana, as in above fragment.
I also tend to believe that as well rebirth vinnana as sense-vinnana’s can be meant in PS.
There are also sutta’s that teach that vinnana is dependend on the body, supported by the body (MN77, DN2).
‘This body of mine, made of material form, consisting of the four great elements, procreated by a mother and father, and built up out of boiled rice and porridge, is subject to impermanence, to being worn and rubbed away, to dissolution and disintegration, and this consciousness of mine is supported by it and bound up with it.’ (MN77, Bodhi, Sujato does not translate ‘supported’)
I believe this is true. For, the physical info this is quit obvious. But i believe also for thinking and emotions, tendencies, and even how we perceive ourselves, others, objects.
I see this now very good with my mother who has Alzheimer. She is now not able to see anymore the difference between for example a robot cat and a real cat or a doll and a real baby. She does not recognise herself in a mirror but is sure that is ‘not me, not mine, not my self’ but it is another person she sees. Often she says things like; 'hé there is someone else in the room (seeing herself). She has no awareness of what is mine and that is really not wisdom. She takes away stuff from the room of others and does not experience her room as her room. This all becauses of changes in the brain.
I do not really know if there is anything that we experience that is not somehow related to brain activity. I also read a book that a scientist also believes there is not really something like a mental illness without the brain being ill too. Like depression. He believes it is only matter of time and increasing knowledge that we will see that all mental issues also means there are physical issues.
Anyway, change the state of the brain and changes happen in thinking, emotions, perceptions etc. Even mystical experiences can be triggered.
I do not exactly see yet how to integrate such empirical knowledge with ideas about rebirth.
I know theories but, i do not know.
Anyway, i believe the sutta’s are right that vinnana is supported by the body, also the mind-vinnana’s. That is an undeniable empirical fact i believe.
Are they causes by the brain? At this moment i keep it at…supported by the brain.
Vinnana is described as not-stable SN22.96
“Bhikkhu, there is no form that is permanent, stable, eternal, not subject to change, and that will remain the same just like eternity itself. There is no feeling … no perception … no volitional formations … no consciousness that is permanent, stable, eternal, not subject to change, and that will remain the same just like eternity itself.”
But still the freed vinnana or mind, represented by the fully awakend ones, is described as stable (SN22.53)
I still do not understand how people can see mind as fundamentally unstable, any moment arising and ceasing, but also believe one can arrive as a stable mind, even peaceful. But how can that instability be a base for peace? And how can one ever see that instability if not from a stable point? It seems to make all no sense.
Later more about vinnana