This quote suggests that worrying doesn't serve any useful purpose; instead, it's like spinning your wheels in your imagination. When you worry, you're often dwelling on negative thoughts and imagining worst-case scenarios. However, these thoughts don't lead to productive solutions or positive outcomes.
Imagination is a powerful tool that can be used for creativity, problem-solving, and envisioning a better future. Worry, on the other hand, is when imagination is directed towards anxiety and fear. It's as if you're using your creative energy in a counterproductive way.
In essence, this quote encourages us to redirect our imagination towards more constructive endeavors. Rather than wasting mental energy on worrying, we can focus on creative solutions and positive possibilities. By doing so, we can make better use of our imagination and lead a more fulfilling and productive life.