umalah haaretz deah es Hashem kemayim leyam mechasim – the chafetz chaim says this means that although the surface of the sea appears to be flat – the depth of the sea depends on the depth of the sea bed.
Similarly when mashiach comes the amount of deah es Hashem that will be given to each person will be toleh on the amount of hachanah they made in olam hazeh.
According to me this means that if you go to work becuase it is a mitzvah then when mashiach comes all your professional knowledge will be converted to Torah.