Everything is seen from some perspective
Inside the skull it is dark and silent. The brain creates the subjective phenomena that we experience as images and sounds from the input it receives from visual and auditory neurons. These neurons transmit the information they receive from sensory organs that have the remarkable ability to obtain information from the outside world and translate it into signals the nervous system can use. However, our visual apparatus is only sensitive to a small portion of the electro-magnetic spectrum; likewise, there are many sound frequencies that are too low or too high for our auditory apparatus to perceive. The bloodhound, the bat, and the dolphin create different maps to the world through different sensory apparatus than we do, and so their representations of reality is different than ours. From the incomplete data about its environment, the brain creates—confabulates— a best guess of objective reality.