It's funny how old religious ideas are simple observations in a way. By doing something everyday you just accumulate lots of subtle knowledge and roots in any domain. So mathematically you have lots of chances to get it right at one point. More than "luck" to me the main factor is a blend of inner desire and context that allows you just enough time to think and do.
Jim Carrey said it best (paraphrased): It is by sheer luck that an opportunity presents itself. But once it does it is up to you to have the means to execute on it, and to execute on it. The good news is that opportunities present themselves often in life. So just get to where you can act on them, and once you see one, act.
