Let’s go bigger than mere dictionary definition.
I am convinced that the area of the mind/brain which deals with spiritual belief—whether it’s the pineal gland or some other “God spot” either within or without spatiotemporal reality—is always activated in any given human being.
I believe yours is activated by your deepest beliefs about you, your life, your loved ones, the universe and reality itself.
Even secular totalitarian regimes are built on religious themes, from Stalin to Kim Il Sung.