What's the Point?

Did you ever wonder why God had the Children of Israel build a tabernacle while they were traveling through the wilderness? I mean, really. Didn't they have enough going on already? Lol. They have left Egypt and slavery behind. God is leading them with a cloud by day and a fire by night. He's dumping manna on them each morning. And they are traveling. And traveling. And traveling. Yet, God gave Moses the specific plans to build a tabernacle. My mind says, "Yeah, one more thing to carry with us!" (That's sarcasm in case you didn't recognize it!) They had to cut down trees, and not just any trees, specific trees for the various components of the Tabernacle. They had to weave cloth together, and not just any cloth, specific types of cloth were used for the various elements. They had to make gold utensils and silver utensils. And they had very specific instructions. God even provided them with instructions on how to load it all up when it was time to move again...