Thank you for giving this conversation an honest chance. I am happy to say that I have a further reply to this, and let's see where it takes us.
The spaces between the letters that you mention, nevertheless consist of pixels. The spaces between the letters, far from being nothing, are full of pixels. Similarly, we do not drop from an empty vacuum into this world – we come from an uterus. I believe that, if this semantic fulness (instead of semantic emptiness) is postulated as fundamental, then we obtain a new system of thought that no longer renders meditation as valuable – at least not for the age-old arguments.
Perhaps I should reveal my stance fully. I do not believe your meditative practice and experiences are disconnected at all from semantic factors, such as assumptions about the nature of the world, reality and mind. In the mean time, metaphysics are notorious for having changed disruptively over time, and given a newer system of thought that postulates fulness as fundamental [note], I wish to explore the extent to which the age-old practice of meditation still makes that much sense.
[note] As far as I can tell, this originated in the newer physics, once the older luminiferous aether had been replaced by the newer plenum.
It's not "my" meditative practice, and my experience isn't a thing, either. Those are abstract constructs.
You're welcomed to explore "fulness". Lots of people are. Until you experience it for yourself, though, you won't really understand. This isn't something that you can pawn off onto an observational instrument. You ... hmm, what was that post-modern jargon? You disintermediate yourself as the observer and the observed.
The "fulness", by the way, is not new either. The "no self" teaching is the same as "true self" teaching -- your "fulness" that you treat semantically. That is, that there is a fundamental "Nothing" that is at the same time, all-inclusive Everything.
Anyways, I've discussed this as far as I want to. I encourage you to empirically observe this yourself. Not discuss it, not study it, not debate it, not reply to it: empiricism in its original sense of finding out for yourself, and experiencing it for yourself. If you sincerely want to explore the relevance of this age-old practice, you cannot do this second hand. (There are other methods besides meditation; you can check out Rick Strassman's book for other methods; the meditative states trigger the same kinds of neural chemical reactions, albiet for the rare ~2% of the population that get it spontaneously, or spent a lot of time with it).