The source opens with Aldous Huxley’s image of the “doors of perception”: human experience is not a complete copy of reality but a filtered version. The central idea is not that we are blind; it is that perception selects, compresses, and organizes more information than consciousness can hold at once.
That distinction matters because a filter can become invisible to the person using it. Familiar expectations begin to feel like facts. The training therefore starts with a practical question preserved from the source: What are you repeatedly noticing—and what might your usual way of looking be leaving outside the frame?
The useful takeaway is not “believe anything.” It is the opposite: become more curious about the assumptions that organize attention before deciding that your first interpretation is the whole picture.
Notice the filter → Name the expectation → Widen attention → Look again