Reality we don't know
I've noticed that I'm the only person who writes in this category anything (metaphysical research is a research toward the very basis of everything else what is this forum about - the basis of a knowledge on the true reality). And that's not a coincidence, the society is mentally programmed on the Earth to seek out not too far. There's a certain pattern leading to learning things like those which Robert Bruce taught people, most people just start with a single thread, typically when they're teenagers, something like:
"OMG I want to see aura, learn out-of-body thing, contact spirits - how to do this? quick way?!" etc.
And, as a typical route shows, for most people it ends somewhere there. There are lots of experiences in the past, sometimes centuries back recorded, as well as modern experiences, from which we can learn and conclude, including shamanic experiences all over the world and people who rediscovered old knowledge in the XIXth and at the beginning of the XXth century, sometimes forming orders, sometimes not. They not just extend the perspective, but primarily they are the very needed facts that are the backbone of the knowledge of the reality that we badly need, like puzzle pieces that we need to analyze and connect together. There are 2 approaches to the knowledge on the reality: either to limit yourself to your own experiences and knowledge (plus the person from whom you were learning), or to compare also your experiences to others, possibly the widest group of people who also had experiences, but may come from a different culture.
While this seems to be pretty obvious, I wonder why almost no one is interested?
Compared to all the things out there that life has to offer, there are indeed not many people who are interested in the subject. This is because we are all animal beings, and thus the subject competes against those that are more sensibly applicable.
Furthermore, the growth of this website and business has been very slow (especially since and leading up to my father's passing), so we have not been able to gain the momentum required to expose such spaces to people who might be interested.
Thank you for continuing to contribute to the discussion. Sorry that I have not been available to champion the cause along side you.
Much will change when complications settle so that I can take the reigns in confidence to build the business in the way that my father had always intended it to go.
In time, I have no doubt that this group, as well as Astral Dynamics, will get there. It would be so wonderful to see this forum full of discussions involving research articles, books, videos, and philosophical insights, so as to provide a wealth of resources that people could investigate and collaborate on.
As for the subject itself, as you say, it is very important to learn. To put it succinctly, this is the study of like-physical qualities that are woven through and around every aspect of our existence. It is actually my father's core inspiration, as he was fascinated by the spiritual medium in a practical way from which he could tangible observe and engage.
When we develop our metaphysical understanding, we too develop our metaphysical senses. It awakens us to the nature of what we truly are and where we find ourselves to be, across all dimensions of being. To bring clarity to that unseen medium is to provide us with ways to better connect, work with, and otherwise engage with it - toward transcending ourselves and humanity beyond the conflicts that, while absolutely necessary, very much obstructs our development.
Be well. Stay true.