Let me tell you this is also an idea. The fact, which you so perceive, by common definitions that you're reading this post has a lot to do with the gap. It's a common belief by you and me that something of such kind should exist between us and therefore, I say, this could become an illusion in the next few moments, easily.
Let's look at simple intersections in our daily lives as examples. Our routine is an example of mass-attune. Millions of people made to believe in the same idea. Although I'm struggling to give that idea a clear name, it is more generally known as life. Why do we even need to know that we will live? The whole sense of a life destroys a lot of our mind. For that matter, there is no bigger form of conditioning than this really nonsensical dealing of life.