Eights are about the honor & glory of the mind. The mind expressed through the physical world is the organization of parts into greater a whole.
We see a man sitting at a desk, working to complete a puzzle. An image of the completed puzzle hangs on the wall behind him. This card takes place inside, sitting on a chair at a table. All of these things remind us that the world is a created thing and that each object we create is able to be more complex than the last. More complex objects are based on those that went before. If the base is flawed, all that comes from it will be flawed.
Science & order. Organization of resources to achieve the desired result. Understanding of physical cause & effect. The wisdom of patterns. A practical choice or solution. A need for ordered behavior. A tidy room helps make a tidy mind.