Having perspective allows you to see complex things differently.
Suddenly, a mind block is freed and you “get it”.
Stuck on a problem? Go for a walk. Play catch. Watch a movie you like.
Your subconscious is still at work, and a single scene in the movie or line someone says to you will ‘click’ when you least expect it.
Even if you don’t go “Eureka!” at least you’ll have gotten some rest to pick your tools up once more to give it one more honest try, get one step closer to success.