What we see, hear, and feel is not reality, but our brain’s interpretation of it. Right now there are thousands of radio waves flowing through the air around you. When you turn on your radio, you hear only one wavelength- that one station. Your radio doesn’t play all the stations simultaneously it would be too confusing. Also, your radio isn’t set up to receive microwaves or any of the millions of other wavelengths available.
Humans are very similar. We have five basic instruments to pick up wavelengths. These instruments (the five senses- human antennae) take in information which is then interpreted by our nervous system (similar to radio circuitry), which then assembles the information in a way we can comprehend it. Everything you think you see hear or feel is created by your brain in response to real external stimuli. Reality out there does exist. We just never get to experience it first hand.
So our brain creates a virtual reality for us- a map. Just like a map of your town. The map is not the town. But, if you want to get to the corner store and the map tells you how to get there- it’s useful.
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