Creativity.
Renewal or rebirth.
Resourcefulness.
Personal healing or growth.
A factory that reshapes metal into a final product might represent a novice becoming an expert or a baby growing up into an adult.
A plant that refines raw ingredients (such as a mill or oil refinery) might represent refinement (such as of character, skills, or discernment).
A plant that recycles old materials into new products might represent transforming an outdated belief into an updated one.
See also: Making or Building; Factory; Workplace; Business