Coming from a philosophical standpoint luck doesn't exist. When you get "lucky" it isn't an outside force that is rewarding you for helping a grandma crossing the street, it is just a concept we came up with to give reason behind things that seemingly shouldn't happen.
From a spiritual/religious standpoint it is the opposite. Luck could be your god(s) rewarding you for good behavior, or just making you lucky for no reason but to have fun. People tend to believe in luck as some outside force due to religious or spiritual beliefs.
The answer you are looking for is: Simile, metaphor, hyperbole, and also personification but thats not up there. Hope that helps!! Have a wonderful day!!
