His point is this: Before science even thought up the idea that the Earth revolved around the Sun, the basic belief that the Sun rose, revolved and set around the Earth was a "correct" conclusion based on observation of what was available to the five senses; every morning the sun "rose" over the horizon from the east and "set" over the horizon to the west.
Today we find ourselves collectively at the same place as our ancestors. We observe our bodies going through our daily routines, separate from all the other bodies we see and interact with. Based on the observations of the world we see, smell, hear, taste and touch we conclude that we ARE separate bodies separated from each other and from our source, wherever it is we came from.
Suppose that we learn new ideas about what we really are. Suppose that we are skeptical enough to entertain the thought that we are in reality only dreaming of this world, while we are actually safe with the Source, and in reality we never left.
We would be just like Copernicus. If we tell everyone we meet that we have found the way to peace, we would be possibly laughed at, or at least typecast into a group of "crazies" who believe there is a way out of everyone else's daily fear-based system. Churches might even take offense to the idea that we might espouse: that God or The Divine has nothing whatsoever to do with the physical world of form that we observe on the screen.
Copernicus and his ilk were jailed, tortured, and even executed for their "wacky" beliefs. Luckily so far anyway we run no risk of persecution, but is it a bad thing to challenge the world's everyday thinking? Look around, is a lot of this really anything to write home about? The more I experience the inner, the less attraction the outer offers. I prefer to believe the earth revolves around the sun! Even though both the earth and the sun are merely ideas in our collective mind that sleeps!
"For my part, whatever anguish of spirit it may cost, I am willing to know the whole truth; to know the worst, and to deal with it." - Patrick Henry