So you're saying the actual ark is in Heaven?
Nope, the bible is saying that. Ifit's not actually there then I would say it's symbolic.
Rev 11:19 And the temple of God was opened in heaven, and there was seen in his temple the ark of his testament: and there were lightnings, and voices, and thunderings, and an earthquake, and great hail.
If it's symbolic then it's saying that God's covenants, both the old and the new, are based on the eternal law expressed in the ten commandments.