What Does a Mitzvah Do For You?

If you do a mitzvah, you create a spiritual being. A mitzvah is not an act that once it's done it disappears and it no longer exists.... Even physical acts have a certain permanence. But a mitzvah is an advocate that speaks for you, it's a malach (angel). Yaacov saw in his dream that from the Am Yisrael (whom he represented) mitzvos would be created. These mitzvos would ascend the ladder and go all the way up to Hashem. Then they would come down again bearing in their hands blessings, benefits of happiness, success and prosperity for the people below... Hashem loads them with all good things, and they come down and they bring the hashpa'ah below. -- Starting the Climb to Kedusha (#518)