Why we need to send Mishloach Manot through a Messenger?

Shout out to Rabbi Foreman for a beautiful interpretation which brought me more chiddush into the world.

What is Halacha B'Simcha!?

Sweet Halachah: Clear and Joyously Done: Often Based on the Psak of R' Eliezer Melamed's Pniney Halacha
Also Based on the Dirshu Mishnah Berurah