What would it be like to have absolutely perfect "vision," i.e., to be able to see things in ever greater detail? As your perception zoomed in to the atomic level, you would perceive only atoms. Huge distances between atoms (relative to their sizes) would become apparent. There would be no color, since that is simply how we perceive the photons being emitted by atoms. There would be no perceivable boundaries -- only swirling atoms. Without boundaries there would be no sense of physical objects.
As you continued to zoom in, electrons and other subatomic particles would become "visible." At this point, however, it turns out that electrons are not particles as we normally think of them -- rather, they exist at any given location in Spacetime only as probabilities. Furthermore, it is at the subatomic level where it becomes apparent that particles only actually exist as intersections of Energy. At this level of detail, everything would be perceived only as a swirling mass of colorless Energy.
What has happened to the "I" we are so familiar with? Everything at this level appears to be formless, all part of a single "One." It's not that structure isn't present -- it is, at higher levels -- but at this level one begins to wonder how important those higher level boundaries and structures actually are.