Pure challenge for the sake of challenge with no immediate benefit. Awesome feeling when you get an open. It has intermittent reinforcement, like getting a bite fishing or winning gambling.
For people who struggle with traditional forms of meditation it is a great way to practice focus. I sometimes carry a lock and picks around to use like a fidget toy.
Other than that I kind of like that it has no immediate or measurable benefit. Nice to leave the hustle behind. In a way being useless is what gives it use to me.
