Luck is fear. A reaction to the insecurities daily life brings. If we put our faith into something that does not exist, we can never be disappointed. If things don't work out we can blame the eternal empty anti-hero. God can be very unlucky.
People huddle around the campfire of good fortune, collectively roasting their weenies.
If someone drops their dog in the fire they are said to have bad luck. Now we can converse and mourn our comrade's unfortunate circumstances, while we sing our campfire songs in solidarity. We need our worship. Right now I am burning my lucky lottery candle next to my St. Lazaro votive. My troubles will disappear.