I feel compelled to share this.
IMVHO...
I think what should be aspired to here is to actually view these things in some physical sense.
Well thats what I aspire too. On the surface it may sound foolish but I'm not so sure. Here's why:
I also read Modern Magick, albeit 15 years ago. I was new to the subject and went on as you are now.
Time passed (maybe 8-10 yrs)and I stopped performing the LBRP regularly. I was studying other systems, religions, etc. but would always come come back and would do the ritual in spurts for a few weeks. I to would use the brain to visualize the pentagrams in a bluish color and when charged would explde in flame similar to the cover of that book. Anyways during one of my returns to the ritual several years back I was doing it in a dark bathroom. I started off as usual. I wasnt activley even studying Magick at the time so I wasnt adding any new attributions,no assumption of god-forms, no robes. Just me, in the bathroom doing the ritual. When I drew the pentagram in the east something was different. The color was vivid and it seemed as if I was viewing it and not projecting it but through the force of motion I immediatley began charging it and it certainly charged. it exploded in what I call an electric blue flame. But not flame more like electric sparks mostly white with a blue hint. I could hear it crackling. The bathroom seemed to be lit. Literally. I could now see in the dark. I kept going but as I moved on I couklnt really take my eyes of the first pentagram and it quickly faded.
However even that couldnt keep me active then. Only recently have I finally undergone the nescesary changes in myself to know I will do it for the rest of my life. Nothing even ever come close to that experience. But it was so clear and crisp. my very first thought when I saw it was " YES!! thats how it suppossed to look" I try to re-create it to no avail.
In my mind this experience was confirmed recently in something I was reading. I'm prety sure its in Liber O when the rituals are first described.
Or Im just crazy.