Something I've always been interested in. APAK's mention of the 4th dimension made me think of it.
In Scripture, there are 3 different places in the Universe where the human beings that are saved will spend their resurrected life. There is the Earth, the Heavenly City New Jerusalem in the starry Heavens, and Far above All Heavens where Christ now sits at the right hand of God.. Each of the 3 are expressed in scripture as the dimensions of movement each has. Depth must be the 4th Dimension in God's abode, or God, Himself.
The Nation Israel will occupy the earth (the Land). They will have access to only the earth
Genesis 13:17 - Earth - 2 Dimensions
"Arise, walk through the land in the length of it and in the breadth of it; for I will give it unto thee."
The Acts church, both Jews and Gentiles, plus all those great Israelites of the past, including the 12 apostles, Abraham, and Moses, will occupy the New Jerusalem. They will have access to the starry Heavens and the Earth, in their spiritual bodies. This group makes up the Bride. The NJ is said to come out of Heaven and dockon the New Earth. Of course, all the Heavens will be New also. The occupants well be resurrected at the rapture.
Revelation 21:16 - New Jerusalem - Heavenly City - 3 Dimensions
"And the city lieth foursquare, and the length is as large as the breadth: and he measured the city with the reed, twelve thousand furlongs. The length and the breadth and the height of it are equal."
The Gentile church of today, found ONLY in Paul's 7 post-Acts epistles, will occupy heaven, itself, where Christ now sits at the right hand of God. We will have access to the entire universe. Since we will be part of Christ's actual body, where He is the Head, we, it seems, with Christ, make up the Bridegroom. I believe we will be pure spirit. We will be resurrected at the "Appearing". Everything I've said here, about the Hope of Heaven, itself, and the Appearing, is easily found in multiple verses, especially in Eph, Phil, Col, and 2Tim. Nothing there is hid under a bushel.
Ephesians 3:18 - Far Above All Heavens - 4 Dimensions
"May be able to comprehend with all saints what is the breadth, and length, and depth, and height;"