It's amazing what that does for the mind. Quiet, near-singular focus for a week straight is one of the most relaxing things you can do. You find that the pacing of life just seems to line up a lot better with human neurology.
I used to go hunting with my dad every year. Then I realized I had a freezer still mostly full because, well, deer meat isn't that good. So I still go, just without actually shooting anything.
It's a cathartic experience. When your sole focus is spotting a deer, everything else kind of fades away. Starting in pitch blackness. Every little noise makes you turn your head and stare at...nothing. Or is it? Hard to tell. Sun starting to rise - good, you're freezing...but why isn't it warming up yet? You listen for every little crack or grunt. You watch the squirrels chase each other - are they fighting or playing? You start to appreciate the beauty and joy nature, that you've been ignoring for years, can provide.
Well, you could write a book about the experiences, but it's definitely something I highly recommend - even if you don't want to shoot anything.