Modern educational institutions were designed to train children to see and experience the world divided up into parts, thereby disconnecting them from the unified whole (of nature, community, universe) that in truth we all belong to.
Science, art, history, literature, math, music are presented to children as being completely separate from one another. They don’t learn how these are in truth interdependently connected. Children are tested, measured (and compared with each other) for how well they can remember what they were taught. This creates a further sense of alienation and disconnection.
Over time, our consciousness compartmentalises, so that by adulthood we come to see ourselves as individuals separate from the universe. We learn to experience life and see the world divided up into parts, as fed by the media and taught when we were institutionalized (as children).
Think about that. Let it sink in. Most of us were institutionalized as children.