An example of this additional meaning is the word "Mitzvah" is (mem-tzadi-vav-heh) is usually translated commandment. The name of God is Yud-heh-vav-heh. The atbash for mem is yud and atbash for tzadi is heh. So if you replace the first two letters of "mitzvah" with the atbash conversion, you have the name of God. This is an allusion that doing a mitzvah reveals God in the world, though in a somewhat hidden way.