Thinking about it, believing in luck is a psychological prop.
If things go wrong, you can believe it's because you're down on your luck, instead of thinking that you're a complete loser.
And if things go well, and you attribute that to your good luck instead of your own diligence, or astuteness, that is something to be grateful for.
I've just read somewhere that a sense of gratitude is one of the hallmarks of a happy person, so overall, believing in luck can cushion you from life's blows, and make you even more appreciative of life's joys.
Even so, I don't believe in the power of inanimate objects to bestow luck, either good or bad.
