What are five totally distinct, creative ways to describe the usefulness of an idle mind?

1. An idle mind is like a garden waiting to be planted with the seeds of creative ideas.
2. An idle mind is like a blank canvas waiting to be filled with fresh and original thoughts.
3. An idle mind is like a time machine that can transport us to a different world of possibilities.
4. An idle mind is like a treasure chest full of hidden riches waiting to be unearthed.
5. An idle mind is like a garden hose that can irrigate us with ideas and solutions.