In the year that King Uzziah died, I saw the Lord sitting on a throne, high and lifted up, and the train of His robe filled the temple. Above it stood seraphim; each one had six wings: with two he covered his face, with two he covered his feet, and with two he flew. And one cried to another and said: “Holy, holy, holy is the Lord of hosts; the whole earth is full of His Glory” (Isaiah 6:1-3).
So not only do we have the promise of God and the petition of Solomon, but now the perspective of Heaven! As the inhabitants of Heaven look down on the earth from the throne room of God, they can’t help but declare the holiness of the God of the armies of Heaven! Their perspective of our planet in the context of their surroundings is, “The whole earth is full of His glory.” In their eyes, His glory is already covering the earth and all that separates us from seeing this is a thin veil of unbelief, the weight of sin, and our human, earthly perspectives. Once again, heroes are made when they can lift the temporary veil of earthly perspective and peer through the eyes of Heaven on the glory of God that even now covers the earth! Then they will be able to call this glory forth like lava from the depths! These moments are what we call revival, a miracle, or the Kingdom breaking in! Oh, to live constantly in this reality of Heaven!
Byrd, Andy; Feucht, Sean (2010-09-01). Fire and Fragrance (Kindle Locations 788-798). Destiny Image. Kindle Edition.
I'll give these writers partial credit for some truth here. The rightly point out that the angels said that the Earth is already filled with God's glory. From that point on, though, they seem to have gone loco.
For example, the passage says nothing about this, "all that separates us from seeing this is a thin veil of unbelief, the weight of sin, and our human, earthly perspectives." Was the prophet Isaiah also a human, did he not suffer from things like unbelief, sin, and being human? God visited him in this way, in spite of these thing. He visited other prophets, such as Ezekial, in the same way. He visited Abraham, despite the fact that he was a liar and showed a lack of faith when he had a child by his wife's maidservant. He gave Jacob a vision of a ladder, despite Jacob being a deceiver, even one who deceived his own blind father.
These and others whom God spoke to were not able to make themselves good enough. They could not cure their own unbeliefs, the could not clean even the smallest of their own sins.
And this is important, because look at what these pitiful writers say. "Once again, heroes are made when they can lift the temporary veil of earthly perspective and peer through the eyes of Heaven on the glory of God that even now covers the earth!" It is as if they are saying that Isaiah, Ezekial, Abraham, Moses, any prophet, did the work of lifting this veil on their own, as if all they had to do was to do some X actions and then God will give them a sneak peak of spiritual matters.
That's not what happened. I can't think of any time in the Bible when a person was allowed to attempt to breach the veil into spiritual things. It is always God's sovereign decision to speak to a person, or to give that person a dream or vision, or to send an angel to them. When Peter was rescued from prison by an angel, or when he received a vision concerning the Gentiles, he had nothing to do with trying to cause those events to happen. It was all God. Saul was not looking for Jesus when Jesus knocked him down near to Damascus, and he had nothing with trying to have the vision that told him to Macedonia.
God sent visions to pagans like Pharoah in Genesis and to Nebuchanezzar in Daniel. God sent an angel to the greedy prophet Balaam, and even let his donkey speak to him. He sent prophets to good kings and bad. He even sent a dream to Pilate's wife as a warning.
It is not our job to "lift the temporary veil of earthly perspective". We cannot do that. It is not our job to "call this glory forth like lava from the depths!", nor are we able to do such things. It is nigh unto blasphemous to say that we are able to do such things, if not all the way there. No Scripture ever tells us to do those things, and I would say that there is a danger in doing them, because it is all about works, all about our own efforts.