part 1: "same playing field":
This post/section depends on a few premises, so I’ll list them now:
(The below starts off very abruptly and densely, in the first premise, but if you kind of let your eyes glaze over on the first read, and just skim, it quickly gets easier to follow after a few paragraphs.)
The first premise is something like the “redo-to-undo” principle. The the redo-to-undo principle is something like, for a particular latent (high-dimensional, distributed) “patch” or “area” of bodymind “state,” i.e. the way the bodymind (latently) is–for that area of bodymind to change or transform, that area must be “redone” or “replayed” or “reactivated” or “re-evoked” or “activated.” After being re-evoked, it is labile, changeable, and it can participate in mutual transformation with other “bodymind” that is also concurrently activated. (And this implies that there is “doing” (and redoing) and “undoing.”)
The second premise is something like liberated mind, natural mind, ordinary mind is the same thing as “settled” mind. (“Settled” shouldn’t have a connotation of static or fixed. It’s still open, sensitive, responsive, (structurally) fluid. But just like water in a container, it can be at rest until stirred, and it can smoothly resettle if left alone).
The third premise is something like “connectedness of mind.” What this means is something like, if the mind is changed somewhere, then it’s like, from that change point, there are tendrils all throughout the mind, that either ever so slightly tug a little bit or every so slightly become more slack. And so, after ANY change in the mind, either through meditation (prior to “enlightenment”) or spontaneously (after “enlightenment”) [both very loosely speaking], a “global settling process” is kicked off, a perturbation, a reverberation, that ultimately touches at least some of the mind, and, in principle, in the most general case, needs/does touch ALL of the rest of the mind, sometimes many times, to reach global settledness.
The fourth premise extends the second premise and is something like, in addition to premise 2–a “liberated mind, natural mind, ordinary mind is the same thing as ‘settled’ mind”–such a mind is also a “fully untangled mind.” (And this implies that there’s such a thing as “tangling” and “untangling.” And, so, some “doing” is tangling and some “doing” is untangling (and some is neutral). And let’s say any/all “undoing” is net or mostly, if not entirely, untangling.)
The fifth premise is something like, explicit meditation instructions can only ever be incomplete, and can only ever partially specify what needs to be done for “complete untangling.” That is, they can’t fully specify all the things that need to be done in the technical sense. (In parallel, a teacher cannot fully specify all the things that need to be done, either. Of course, for explicit instructions, or teacher interaction, it can be a long, patient, extended text interpretation, or interaction, with multiple texts or teachers, to finally get all the pieces that one needs, to get all the rest of the pieces that one needs, through individual practice.)
Therefore, a personally adequately liberatory practice must implicitly contain the seeds that, through practice, self-generate all the things that need to be done, for that person, in order to be fully liberated, settled, etc.
And, a universally adequately liberatory practice (which doesn’t exist except empirically by degrees) must implicitly contain the seeds that, through practice, self-generate all the things that need to be done, for any person, to complete full liberation, settledness, etc. (Note, for completeness, that I think this is only asymptotically possible and also environmentally contingent.)
Note that anything that can be done, including nuances, shades, modulations of any particular “doable thing,” must be something either explicitly specified or “self-generate-able” by a universally adequately liberatory practice (UALP). Because, some person, somewhere, in imaginable principle, will need that particular thing, and it won’t necessarily be in their starting repertoire.
What the above means is that anything doable is potentially a part of practice, either as seeking out similar experiences one has had in one’s past (“environmental redo-to-undo”), or finding one’s way internally to original sense impressions (“memory redo-to-undo” [successful environmental redo are also memory redos]), or internally recreating missing experiences, when adequate, that one can’t have out in the world (because impossible, dangerous, unethical) and also never had in the past (“imaginal non-tangling ‘do'”)
And so anything non-tangling or untangling (and even things that locally tangle in the service of future untangling, cf. technical debt), is partial spiritual practice, including things that aren’t normally thought of as “spiritual” practice (by some people), like focusing or therapy, etc. (Some people will say, of course focusing and therapy are spiritual practice, and so on.)
And so the conclusion or punchline of all of this is that, I don’t think most lineage/wisdom traditions will claim that their path will work for “everybody,” so they’re not claiming universality or near universality. But, they might claim something like “generality,” as in “kinda completely works for some relatively large-ish reference class of people, and at least does some good things for an even larger-ish additional set of people.”
But, to the degree that a tradition says, “X isn’t a part of our path, we don’t do that, that’s not buddhadharma,” they are leaving out anyone who needs any of that doing or redoing, and are sort of “removing all doubt” that their path is not universal. Because, any path that leaves something out will then not work for all bodyminds/people, as it were, because of connectedness and other premises.
And, all of this is why I sometimes say “same playing field,” whether it’s vipassana, yoga, focusing, tantra, therapy, etc. None of those, narrowly specified, are complete and adequately universal spiritual practices, but they must necessarily “inhere” in any truly universal spiritual practice or path.