The Rebbe wanted every Jew to have access to their Judaism and connect to their fellow Jews. The Rebbe made 10 Mivtzoim with Mitzvah campaigns in moments in history that continue to inspire and bring G-dlyness into this world to make it dwelling place for Hashem as the Rebbe said in Sichos.
Provide all the tools needed in kits ,so you don't have to try to figure out what to put inside them and gather all the items, delivered right to you.