I can run pipe through a whole house clean and to code, every joint tight, every slope right. Then the drywall goes up and my best work vanishes behind a wall where nobody will ever lay eyes on it. I stand back knowing it's perfect, and the only person who will ever know that is me.
More people experience this than they realize.
Your finest work is sealed out of sight, and you're the only witness it will ever have.
If this sounds familiar, the Library can help you find the bigger picture.