The reality that can be sensed is based on many things, and all of these things carry distortions. The physical reality that one perceives is distorted by the senses. Humans eyes, for instance, see but a small section of the color spectrum seen by other life forms. Beyond the color spectrum there is clarity of vision.
Horses are nearly blind compared to humans, but the gliding hawk sees twice what a human does.
Humans ears hear but a small swath of the vibration frequencies that other animals on Earth perceive, as any owner of a dog who respond to a dog whistle will attest. The human blows the whistle and hears nothing, but the dog comes running. A limited view of the physical world can lead one to distorted conclusions. Mankind deals with gravity, and thus in his mind has a down and an up. On the other side of the world there stands another man whose down and up are contrary.