I think the main point (or what I thought the main point was) is that God is in control.
And we all agree with that, but sometimes I start complaining about all the ways my day is being hindered and not going according to my plans and fighting the way it seems to be going. To me, this is me not accepting whatever He sends my way, because I really do believe He guides my every step and carefully watches over my steps. So I need a reminder (so often that you would think I'm idiot) that He is in control and that I should accept what He brings me, to either do, hear, suffer or deal with.