Ancient Lost Clans
Humans are responsible for the documentation, record keeping, and the accuracy of foretold prophecies within religious practices.
When it comes to the practices, morals molded by their desired afterlife, and how the theology was told, Old Norse Mythology and Christianity are a perfect example of two 'contemporary forces'.
The ability to convince a man physically capable of killing, to faithfully believe in an afterlife that can only be entered through mortal world conditions. It can be dangerous when the desired destination in the afterlife only accepts killers and savages. It can also be just as dangerous, when you can't enter your desired afterlife, unless you accept your fate and you don't fight back, ever.
The pacifistic culture Christ had set, is the receptive Yin.
The 'warrior culture' Odin had set, was the active Yang.