I bought a lottery ticket, and I have permission to win, yet I didn't.
I suspect luck is, in fact, simply the event of uncertainities crystallising favourably (or unfavourably if the luck is "bad"). Like it says in the dictionary.
Yes, to me luck is exactly that: the impact/outcome of uncertain or unpredictable circumstances. If they work out positively, then we say it was good luck, if negatively, then we say its bad luck. So luck is just a name for something that happens to us that we feel we didn't have any control over.
Which is also why many people believe we make our own luck: because in many situations that people attribute to luck, we can influence the outcome, consciously or otherwise.
I suspect luck is, in fact, simply the event of uncertainities crystallising favourably (or unfavourably if the luck is "bad"). Like it says in the dictionary.