Raw, idiom: 14. in the raw, a. in the natural, uncultivated, or unrefined state: nature in the raw.
It is essential sometimes to go into retreat, to stop everything that you have been doing, to stop your experiences completely and look at them anew, not keep on repeating them like machines. You would then let fresh air into your mind. Wouldn't you?
(That would be a big YES to prana. Fresh air, whether it's literal or figurative, is crazy-necessary for sanity, no?)