The Presence of the Almighty
How could a building like the Mishkan or the Beit HaMikdash, or a natural phenomenon like a cloud (at Har Sinai) contain the Presence of the Almighty (Ubiquitous, the infinite volume; omnipotent; omnipresent; omniscient etc. G-d)?
1 Kings 8:12-13; Schneerson: “With the commandment to erect a Sanctuary, G-d gave the promise ‘I will dwell within’. That promise was fulfilled with the manifestation of G-d’s Presence in the Sanctuary. The Divine Presence within our material world. [I.e. His immanent presence, rather than יהוה Himself see 1 Kings 8:27].