I started reading works by Robert Green Ingersoll way way back when I was a youngster in college. This particular one helped me understand what you're asking:
https://infidels.org/library/historical/...oll-devil/
https://infidels.org/library/historical/...oll-devil/
"Never trust a fox. Looks like a dog, behaves like a cat."
~ Erin Hunter
~ Erin Hunter