The tabernacle is a shadow and copy of what is in heaven > Hebrews 8:5. That's why God told Moses to build it exactly as he was instructed. They come together as the imagery of God living with man as He intended to do from the very beginning, in the Garden, and will again when heaven comes down to earth as the new Jerusalem.
In studying Moses Tabernacle, one thing that really struck my heart is the mercy of God. The ark carried the law, by which no man can be saved. As a matter of fact, the law kills. But the ark was to be covered with the mercy seat!! On the Day of Atonement, the High Priest (Jesus) sprinkled the blood of the lamb on it. The mercy seat and the altar of sacrifice (brazen altar), representing where Jesus dies, are the only 2 pieces of furniture in the tabernacle that are the exact same height. God is so amazing, what's not to love?!?