I was thinking that western society does seem to have a lot to do with the archetype of the battle between light and darkness, or good and evil. You see it reflected in religion in heaven vs hell, in popular culture in movies like Star Wars or the Lord of the Rings, in many drama’s as good vs evil, in a lot of children’s entertainment. But it seems to me to be based on an incorrect understanding of dualism.
There was a beautiful story about this told by Thich Nhat Hanh, which went like this. The creator during the creation called for light to come, and the light replied, I have to wait for my brother darkness. The creator replied, but darkness is already here, all around. In that case, said light, I am there also.
Darkness is just where light is not, the reality is very different from the idea of two inimical factions who fight eachother continuously, which is just something that is in our minds, probably instilled from an early age.