Navigators understand that the line between the originating port and the destination is straight only on the navigational charts. The process of moving from point A to point B is really a series of minor course corrections. As the vessel encounters wind and waves, its orientation can be skewed. The navigator has the job of correcting the ship and keeping it on its intended course.
Doesn't that describe life? We see the goal or the destination but life skews our orientation and knocks us off track. It's easy to lose sight of the destination all together. That's when life becomes chaotic and confusing.