From the Ramchal - Fixing the broken not only applies to the earthly, but also to the heavenly. Among what's constantly being fixed and enhanced by our good deeds are the spiritual programs and agendas which hugely effect earthly life. As they improve, so do our lives.
From the Lubavitcher Rebbe - Though the Israelite journey in the Sinai desert is past history, the spiritual forces behind that event are still alive and well. When a Jew works to build Judaism in a place which seems to be Jewishly deserted, s/he gains the Creator's favor. In response, He calls forth those spiritual forces which accompanied the Jews in the desert and sends them to help the Jew turn the spiritual desert into a sanctuary.