I thought I'd jump in here. Great thread, OP! S & F !
If I remember, the OP opened this tread with a forwarning that "this ancient practice" could be....(what, dangerous, eye-opening...) for those who
weren't ready to do this sort of thing. So, that said, this isn't for everyone.
There are many gateways and portals where one can slip through the grids of the dimensions. Unless you are equipped/prepared to handle this sort of
thing, it can be a frightening experience and I wouldn't recommend scrying as a sort of exercise for beginners.
But this is another mirror exercise which can warm you up to the process. This one can actually solve the self-absorbtion vs. self-growth argument, as
you won't be staring directly into your own eyes. (Sorry, I was trying to be funny. Is anybody laughing with me here?

)
I don't know what this practice is called, it's just a meditation practice that I've been familiar with for a long time:
Similarly to the Scrying methodogy: you place a candle in front of mirror, but you also place a mirror behind you. You'll have to play with the
placing of it a little to make sure you get it aligned so you can see the back of your head in the mirror in front of you. You can gaze at yourself if
you want to for a bit, if/when you start to get uncomfortable with this kind of personal intimacy, then gaze away from your first self and follow the
projectory of the mirror behind you until you see yourself into infinity in the reflected mirrors behind you. The idea is to concentrate on getting
smaller and smaller and smaller until you are atom sized. Hold your concentration on becoming ever smaller and keep it there as long as you can. Maybe
only seconds at first. You can reverse at any time and return to the single frame. The exercise herein is to offer the discipline required to focus
your way to the atom size and beyond --and back. Once you have succeeded in this discipline you should feel more confident in moving to the next step.
By then you'll be way beyond asking yourself if you are being a creature of self-absorption!
Annabanana