The tabernacle is a pattern of many things, I'm sure, but it's a pattern for worship. We enter God's outer court with thanksgiving and praise.
"Enter into His gates with thanksgiving and a thank offering and into His courts with praise! Be thankful and say so to Him, bless and affectionately praise His name!"
We don't even enter the gates without thanksgiving and His outer court without praise. I think this is why the enemy has made praise music such a huge issue in the church!! Praise is the pattern to enter His presence....in worship and prayer.
Another pattern is the wine and bread in communion.
I'm sure there are many more patterns. Patterns are given so we can model ourselves after God's way of doing things.