Although the natural world may be an objective, physical thing, our experience of it is anything but. Everything that we see is filtered through our imperfect eyes. Everything we hear goes through our imperfect ears. Then, there is the fact that a vast portion of the universe is invisible to us.
To that end, what portion of our experiences are "real"? How much can we really say about the true nature of reality and our experience of it?
In the end, what experience is remains a mystery to this day. Dive into the topic in the video below.