“1Bhikkhus, just as various winds blow in the sky—easterly winds, westerly winds, northerly winds, southerly winds, dusty winds and dustless winds, cold winds and hot winds, gentle winds and strong winds —so too, when a bhikkhu develops and cultivates the Noble Eightfold Path, then for him the four establishments of mindfulness go to fulfilment by development; the four right strivings go to fulfilment by development; the four bases for spiritual power go to fulfilment by development; the five spiritual faculties go to fulfilment by development; the five powers go to fulfilment by development; the seven factors of enlightenment go to fulfilment by development.
“2And how is this so? Here, bhikkhus, a bhikkhu develops right view ... right concentration, which is based upon seclusion, dispassion, and cessation, maturing in release. It is in this way, bhikkhus, that when a bhikkhu sn.v.50 develops and cultivates the Noble Eightfold Path, then for him the four establishments of mindfulness … the seven factors of enlightenment go to fulfilment by development.
So, when one develops and cultivates the N8P, all the "Seven Sets of Thirty-seven Qualities" are fulfilled. See discussion on the 37 qualities here:
http://fruitofthecontemplativelife.org/forum/index.php/topic,578.0.html
So, it is very important to make sure that one masters and understands how to practice the N8P. It's all there.
And the N8P culminates in jhana, yes? Some call it "right absorption" or "right concentration." We are told this often--reminded by Jhananda--aren't we?
But, then we have to wonder why there is all this 37 this, that, and the other thing. In my experience of daily jhana of at least 3rd jhana each session, I am finding it is possible to be in jhana and yet perhaps it couldn't be considered "right absorption." For example, I have had a few 3rd jhana experiences where I fell into the sometimes very tempting sexual fantasies. Interestingly, I am aware in that moment that I am not practicing rightly. That I'm grasping. Because it has a distinctly unsatisfying feeling to it.
I don't know all these 37 qualities. Certainly not memorized, at least. But when I read through them just now, with many of them I was taken back to a memory of the jhana experience in which that quality was being mindfully observed. They were not all present in just one jhana--not to my knowledge, at least. But it seems somehow jhana leads to these qualities naturally.
I'm not saying we can throw out any kind of studying. But I suppose I am saying that jhana puts all of this into perspective. And reviewing the teachings after jhana provides a special kind of confirmation. It's like doing something right, without realizing until someone points it out.
Actually, it's more like referencing a map. You see you've traveled more than you thought, and at the same time see what is yet to come. And in that moment, you see your location on the map.
Maybe the wrong absorption I described is actually still right absorption, because I realized it's unsatisfying nature.