I think the point is you take the problem home with you and let your subconscious work on it evening and night and then next day you are in a better position t

I think the point is you take the problem home with you and let your subconscious work on it evening and night and then next day you are in a better position to do the right thing about it. However note that nobody pays for you to work on it, or have your sub-conscious work on it on your own time. But if you really want to do a good job then that's the way to do it.