When stuck with a problem for a long while, stepping away is the best thing we can do. Long involvement entrenches us in a particular way of thinking. Once we step back and return, we often find a solution.
Like insects in a spider-web, experts in an established field often find themselves trapped in the intricate weavings of its existing paradigms. Every such field of study has been revolutionized by outsiders.
Our friends can give us refreshing insights to solve our problems, for unlike us, they are detached from our problems.
Attachment contracts our field of vision. Detachment expands it.