At the end of Sefer Shemot, the Torah reviews the building of the Mishkan. At the end of the Sefer the Torah describes how Moshe spoke with Hashem from within the Mishkan - in the Holy area of the Mishkan Tent or "Ohel Mo'ed", hearing the voice from between the two charubs, "Keruvim", that were on either end of the Ark of the Covenant. What is the significance of this description? How do we relate to Kedusha? And what lessons can we learn from this pivotal description?