I like this card very much, and it's one that I struggle to connect with in many decks. I love the text all over his body. He needs no holy text; he's tattooed with his own spiritual experiences. All of the dangling keys remind me that are many paths to the Divine, and we can each choose the key that fits us best. There is no "one ultimate truth".
The book mentions 5's and of course they're all over this card. I couldn't help but think of the elements- earth, air, fire, water and spirit makes 5. The pentagram has spiritual significance for a handful of faiths. A quick Google search led me to read about The Law of Fives, a key principle of Discordianism. I read about Discordianism on Wikipedia, which explains that:
"Discordianism is centered on the idea that both order and disorder are illusions imposed on the universe by the human nervous system, and that neither of these illusions of apparent order and disorder is any more accurate or objectively true than the other. Discordians use subversive humor to spread their philosophy and to prevent their beliefs from becoming dogmatic."
This makes me smile, because it sounds like the Silicon Dawn as a whole- subversive humor, an attempt to make the Tarot more fluid, etc. At Wikipedia, the Law of Fives is described as:
"All things happen in fives, or are divisible by or are multiples of five, or are somehow directly or indirectly appropriate to 5. The Law of Fives is never wrong."
I'm not sure how the 5 thing will play into how I read this card, but I find it fascinating nonetheless!
In the companion book, Egypt warns us to question our teachers...not to just mindlessly buy what they're selling. I hadn't thought of that approach, but when I read that and looked again at this card, I couldn't help seeing the HP as looking a bit like a car salesman, with his 4 arms all stretched out and all of those keys on display, "Come on, let me hook you up with a key today...just try it out, I'll make you a deal!" It's always wise to ask the tough questions instead of just blindly following the leader.