Once again, you warm my soul Esperanza. Thank you for sharing your inner experience with me, I find it completely fascinating!
I have wondered the same (whether we can practice visualizing) and while I don't have your impressive experience with mediation, I do mediated regularly and have for years and have tried to strengthen my internal vision with little to no luck. Of course I was doing it on my own without guidance (if there is any guidance for that).
I'm super intrigued by your experience with acupressure though! I used to be a licensed massage therapist for years and had some mind-bending experiences many people wouldn't believe so I totally believe your story! I wish we understood it all better.
To my delight, and confusion, I've recently realized that my inner-vision becomes crystal clear while I'm in the act of writing fiction. While writing about a cafe, I can "see" every grain of dust or "zoom in" on the fabric of a chair and see every thread in my mind -- but I can not do that at all with anything else. Even more bizarre is that it doesn't work the same way when I'm reading fiction. While reading a book, I can not picture what the author describes.
It all confuses me because you'd think the "mechanism" would be the same regardless. Yet I'm endlessly curious about it too ha!
Thank you so much for sharing your experiences and thoughts with me, and for your kindness Esperanza. I truly always appreciate you.