Read andreflect, consider, revisit, returnreflectconsiderrevisitreturn

Change improves or alters what is already there. Transformation names a shift in the frame itself: before, we were working within one way of seeing; now another way is available.

The distinction is useful without being absolute. What looks like a sudden transformation may depend on gradual change, and a small change may eventually reshape the whole. Ask whether the moment calls for improving the existing pattern or questioning the pattern that organizes it.