Bravo, Rosborne, a well balanced and sober perspective.
On a less balanced note, my view is that all is illusion in the sense that it is the result of our (personal and cultural) interpretive processes. Interpretations of experience that have positive
pragmatic consequences are, obviously, better for our well-being and survival than do those having negative
consequnces, But from the point of view of ontological philosophy they are all illusory in so far as they are constructed or interpretive products.
And I agree with Theatis' notion "that 'reality' as You
know it is just a projection in your brain anyway". This is why I insist that all of Our
knowledge is human
knowledge a "projection" of our (individual and collective) brain--or to put it another way, it is species-bound
: other forms of animal life and probably intelligent creatures from distant galaxies will undoubtedly come up with radically different "realities".