I ran across the idea of a "Luck Surface Area" in this blogpost by @swyx. He has a nice visualization of it.

Luck raining down at random on many people, each capturing a little. One 'lucky' person collects more luck by standing under a funnel with sides labelled 'doing' and 'telling'

I've always been interested in the idea of luck. I think this is a useful way of thinking about it.