Hey Jhananda,
I wouldn't be so quick to dismiss these people's experiences based on that translation. Right concentration just seems to be the inherited translation which people tend to accept without too much reflection. If you look around that forum of what they have to say about jhana it is remarkably similar to your own, very very strong and deep. I think more people agree with your jhana opinion than you might think. (although obviously right concentration doesn't capture the experience at all, the way these people actually define samadhi outside of that inherited unreflective translation goes vastly beyond it).
It has become clear to me that to arrive at a fruitful contemplative life, then we need to both read and think critically. For instance, I find there is no translation of the bible and gospels that are even close to true. I find the same thing in Buddhism. So, why do you think that is?
I have maintained a daily meditation practice for over 43 years. I have been clean and sober for over 42 years. I have a clean record, and I happen to have an exceptionally high IQ. And, I have documented many of the nuances of deep meditation and its many superior fruit (maha-phala). You would think that I would be the poster boy of Buddhism with that kind of practice and attainment. However, 16 years ago I spent 3 years in search of a Buddhist sangha that would accept me as a monk. Not one did, so I ordained myself. That put me on a list of "controversial Buddhist teachers."
Forty Three years ago I searched libraries and book stores for people who described the experiences that I was having in meditation. I found no contemporary authors even close, but I found ancient authors like: Teresa of Avila, John of the Cross, Rumi, Kabir and Patanjali had descriptions that matched some of my experiences. Along the intervening years I spoke to gurus, and Buddhist monks and meditation teachers about my experiences in meditation. In every cases I was marginalized by them.
Sixteen years ago I used the internet to find out about my meditation experience. I found no one describing the phenomena that I was experiencing in deep meditation. And, there was no use of the term 'jhana' in Buddhism in literature or forums, or dialogs with Buddhist monks or meditation teachers.
Thirteen years ago I had a conversation over the phone with a Buddhist meditation teacher about my meditation experiences. This was immediately after I was booted out of a Goenka retreat for describing my meditation experiences to the assistant teacher there.
He said, "It sounds like you have jhana."
That was the first time I had heard the term 'jhana' in 30 years of Buddhist meditation dialog and reading. And, I was very well-read in published Buddhist literature at the time. However, the inflection in that Buddhist meditation teacher's voice when he used the term 'jhana' sounded like he was saying I had AIDS.
Nonetheless, I searched for the term and found very little written or dialog on it, but I found the suttas, and found that the term 'jhana' was used in the suttas, so I began to read them in translation, where I found ever instance of the use of terms 'samadhi' and 'jhana' in the Pali Canon were always translated as 'concentration.' It was then that I realized that mainstream Buddhism is just as corrupt as mainstream Christianity. This is when I started my own forums on jhana, and I started my website with detailed description of jhana and the other superior fruit of attainment, and produced and published a series of videos on the same subject.
So, if the Buddhist teachers you mentioned indeed had similar experiences to mine, then where are they? Why are they not here? Why are they not quoting my work on their forums?
Also, somebody commented on that thread describing how the 3 knowledges don't arise by themselves but the mind must incline towards them and potentially leave jhana for them. E.g. to recollect past lives. By the way, what has your experience been with past lives?
This has not been my experience. I found insight arose from my deep meditation experiences. I did not have to incline my mind towards it. Nor did I have to reflect upon the 3 marks "knowledges." To me doing so is all too cognitive; whereas, the deep meditation experience is purely subjective, and non-cognitive.
You can find my experiences with the
phenomena of deep meditation, including past life recollection, at the link.
You can also find my writing on
Buddhist criticism at the link.