Throughout the Bible we are presented with Prophets seeing God in heaven siting on His Throne:
Again he (Micaiah) said: "I saw the LORD sitting upon His throne, and all the hosts of heaven standing on His right hand and on His left." (2 Chronicles 18:18)
In the year that king Uzziah died I saw also the Lord, sitting upon a throne, high and lifte4d up, and His train filled the temple. (Isaiah 6:1)
I (Daniel) beheld until the thrones were placed, and the Ancient of Days did sit, whose garment was white as snow, and the hair if His head like the pure wool; His throne was like the fiery flame, and His wheels as burning fire...(Daniel 7:9)
And (Steven) said, Behold, I see the heavens opened, and the Son of Man standing on the right hand of God (throne?). (Acts 7:56)
When the Son of Man shall come in His glory, and all the holy angels with Him, then shall He sit upon the throne of His glory... (Matthew 25:31)
Immediately I was in the spirit, and behold, a throne was set in heaven, and One sat on the throne. (Revelation 4:2)
We know that Jesus informed us that God is a Spirit and they that worship Him must worship Him in spirit and in truth. (John 4:24) The conundrum manifests itself then, How can prophets et al. "see" the Throne of God? Seeing involves visible objects...objects with a degree of physicality...form and substance.
Figuratively, "thrones" are symbolic of sovereign power. And in the Old Testament (Tanach) thrones are mention in that respect. (Psalm 9:4, 89:14; Isaiah 66:1, see also Matthew 5:34, 23:22) It is recognized that some references to "throne" are figurative.
But for physical humans on earth to look up and to see a throne is puzzling! Is there a fifth dimension where physical and spirit intermingle in a different zone that is neither physical nor pure spirit?