Yes, as with all things, moderation is necessary. Just as it is possible to overexert the body with excessive exercise, it is necessary to rest the mind once in a while. Prayer is often a good way to do that, but sometimes you just need entertainment that doesn’t tax the brain so much as relax it (I like games like Tetris for that, as an example.
But the way I see it, a little deep thought once in a while never hurt anyone.
I was a Tetris freak!...................