We British say "to put the world to rights." I've discovered that that's not the way Americans say it and people scratch their heads and say, "Funny... what does he mean by that?" It means to fix the thing, to make it all better again.
Many Christians in the evangelical tradition use words like "conversion," "regeneration," "justification," "born-again," etc. all as more or less synonyms to mean "becoming a Christian from cold." In the classic Reformed tradition, the word "justification" is much more fine-tuned than that and has to do with a verdict which is pronounced, rather than with something happening to you in terms of actually being born again. So that I'm actually much closer to some classic Reformed writing on this than some people perhaps realize.
...we will arrange for 'religion' to become a small subdepartment of ordinary life; it will be quite safe - harmless, in fact - with church life carefully separated off from everything else in the world, whether politics, art, sex, economics, or whatever.