Comparing the number of photoreceptor cells in eyes of human and hawk, hawk has about 8 times more photoreceptor cells than human. The title of the film is about human eyes. Figure of flying bird in sky as a small black dot is the intimation of things that human can not see. Human has been following the black dot by the desire to fly. On the other hand, bird has been distorted by human as an image or a sign.
