The cave is the physical world, the shadows the objects that appear in it, and the ascent to the "outside" the realisation of the self. Let me repeat: the objects you experience, including your body and brain, are the shadows. As a physicalist, you are still in the cave.
Read back through your posts, honestly. You are cackhandedly dismissive, volatile in your responses to things, and you attack characters and assume positions of others which neither obtain nor are held to obtain by those others. In this entire debate, you have consistently failed to do the one thing which has been consistently shown to be the only method of understanding these things from your position, and that is to experience them. I am not saying this so as to shrug you off, or somehow place an impossibility before progress in this discussion: I am saying this because it is what I had to do, what I am still going through, and what many who firmly believed in the physicalist paradigm have had to go through over the past century and more. It is everything from disheartening to horrifying to realise that your entire basis of understanding reality has been wrong, and that you have clouded the vast majority of what is from your eyes, and yet that is what we must go through, having been raised to watch shadows.
I understand the physicalist doctrine as well as you do, and I understand Tradition infinitely better; we can accept that our cognitive ability is roughly similar, and that our reason and logic are the same as is shared by all humans. Given two different understandings of a set of things, one complete, one incomplete, is it not logical to side with the complete understanding? If this cannot be done without obtaining that understanding for oneself, go forth and obtain it!
You are not asked to have a specific experience; you are not asked to change the way in which you experience (especially not through drugs, though they can definitely help for some people); you are asked to recognise that which underlies experience. Rather than focusing on how each subjective experience is different, focus on how the nature of any one experience is identical to that of any other, though the content may differ vastly; what is this nature of experience? What is it to experience? There is something shared between all sentient beings, that is an awareness of what is occurring in perception (including feelings, thoughts, etc.) - what is the nature of this thing? It cannot be ascertained by letting it observe bodies using bodies to measure bodies - if you believe that consciousness can be understood by neuroscience, you are displaying, yet again, your ignorance of the meaning and significance of the explanatory gap.
Consciousness is neither subjective nor objective; if anything, it is both, and can be known to be such when you reach the point that we're asking you to reach. I mean, seriously: when consciousness regards itself, which is the object, which is the subject? Which of the one is which?
The world is certianly not subjective; the world is certainly objective, seemingly experienced subjectively by innumerable entities. However, each and every subjective experience is a part of the world, as much as any object of experience is.
Edit: might I explain that it has been, and still is, incredibly difficult for me to come to terms with these things as they are being revealed to me? I am consistently shown the immutable horrors of reality, the sheer infinities and endless depths of what truly is. I am a skeptic: I take nothing to be true that is not incontrovertibly so. Even then, I am presented with such sublime, awesome, and terrifying realities, and I am forced to accept them as real, as much as what I was tought, the culture I grew up in, and the views of many I respect go against those realities. At least there is some amount of logical consistency, but the irrational aspect of all of this has been incredibly hard to accept. It's taken me three years to get from physicalism to where I am now, and it has not been a pleasant journey; furthermore, I've only just started down the road!