What is the significance of the divine hidenness of God?

I understand that God created humans and hid His presence from them; humans cannot see God but can indirectly interact with Him through whispers, visions and dreams. Is there any significance as to why God hid His dwelling and His hosts from man? Scripture talks about a veil that is set to cover the spiritual world from the physical world and that when Jesus returns this veil will be lifted and nothing will be hidden from man. Why did God place this veil? Paul talked about a veil that covers the human heart that leads it away from the knowledge of Jesus Christ *2 Corinthians 3:14-16* >Even to this day when Moses is read, a veil covers their hearts. But whenever anyone turns to the Lord, the veil is taken away." This could also mean that there is a veil that separates the physical world from the spiritual world and angels can go through it, why did God fix it?