I personally believe that there is divine intervention. However, in life there's a mixture of both self will and divine intervention.
You obviously have the choice to do whatever you want, but at times there will be some divine intervention, especially in the outcome.
I've bumped into some people at the right times, I don't think it was by chance at all.
Plus, I even got a good job once due to what I believed was an inconvenience. At the moment I was a bit mad that things turned out that way, but later on, that "bad thing" turned out to be good.