Evolution not only created the lens we use to perceive reality, but it might also be the lynchpin of reality itself. Evolution drives change. And without change there would be no space or time. Without space and time - do we have reality?
The purpose of evolution ( if we are talking about the same thing ) is to ensure creation is in tune with cosmic inspiration. It's a reflection of a higher plane.
Time exists in order that everything doesn’t happen all at once…and space exists so that it doesn’t all happen to you.
It is a very effective way to for human to satisfy our desire of rationalizing our existence.
Change is constant. Without evolution living systems would crystallize and eventually become too brittle to move with that change.