Rath compares activity without purpose to a mouse on a wheel. They stay really busy, but they don’t go anywhere or achieve anything.
The mouse on a wheel is a picture of how many people describe their daily activities. When I ask someone, “How are you doing?” The most common answer is, “I’m really busy.”
Being busy isn’t necessarily a bad thing, but it is often an answer given by someone who is going through their days without a clear purpose.
Progress can only be measured when you know your destination.