Helio!

I just received a copy of one of the alchemy study course books and it mentions an "underground river" I take things on a literal and subtle level with alchemy most the times so i was wondering is there a place where modern day alchemists and like minded exalted ones or adepts and other spiritual beings reside?

Idk if this is ok to ask aloud but I mean i consider all things as well as hollow earth haha.