"It had a deep emotional effect on them. It was as if many different realities had come together to form this single mass, like separate pieces clicking into place."
...induced a profound passivity in his patients, as if they'd come upon a force greater than anything they could overcome...
False unities are the meat and potatoes of very high-level propaganda. They are launched in politics, economics, organized religion, science, psychology, the military, mind control, in all the academic disciplines.
As an analogy, consider a painting in which the three-dimensional perspective has been radically shortened to eliminate the background. But the background is really where all the action is. The foreground is the false Oneness.