The Maamar is Yidden’s request that in Golus they be as connected as they were in the time of the Beis HaMikdash. The Beis Hamikdash was a dira bitachtonim through Torah and Maase’ and now, in Golus, we hope (“Mi Yiten”) to also make Him His home. This goes beyond the idea of Keruvim (“kiAch”)…

The word ‘Li’ connotes unchanging. This is understood on two levels: 1) Spiritually the Mikdash on high is forever. 2) The Shuls and Yeshivos in Galus make the Beis HaMikdash eternal. This must be in a specific place just as the body has many different limbs and the highest (or center) is only the brain….

Mishkan’s earth is Bittul before Avoda, while the Beis HaMikdash being entirely of stone means that the Bittul permeates each aspect, still, the earth of Sota in the Beis HaMikdash is called “Karka HaMishkan” as there is an advantage to the Mishkan’s (lower) Bittul.