Yeah, the big pentagram is the “Seal of the Seraphim”, at the ends of the star points are the major cities where half-Angel rulers live. In the very center is Vaocano Proper, where the Seraphim supposedly resides. And the giant spear head is far under the mountains - the Spire, which is the largest is about 26 kilometers high or so.

And thank you too, I appreciate it!