You can send a message to anyone on Facebook, regardless of friend status or privacy settings. The only exception applies to those who you've blocked and those who've blocked you. When your message is delivered, you just have to wait for the other person to respond back to your message.
Basic characteristics of a theocracy
A god is the ultimate "source" of authority
A person rules in lieu or in representation of god, since a god has never actually appeared.
Laws are written in accordance to the religious texts
Non believers are often ostracized, if not down-right persecuted or killed.