A wall awaits you, it can be seen in the distance and yet you do not slow your speed as you approach it or dare turn to the left of right, the right of wrong, or ready alright, you just keep moving forward.
You slow a bit more than slight before impact. . .
you could not make a last minute turn or come to a stop, it just had to happen. You saw it coming and yet, you made no real adjustment: welcoming the inevitable impact.
A bird hits a pane of glass, the sudden impact is a shock to it's entire system! It will take some time for it to recover but the abrupt stop has helped in the re-calibration process: some of the needless baggage has been knocked loose; which now can be disposed of or filed in the "review before reconsidering file".
You now must consider the facts: your Ferrari was running on only nine cylinders, your ascot needs to be retied so as to lay it's end flat and you need to notice the drabness of your favorite spot.