This means that, once finished by the artist, change in the creation only happens when someone or some thing acts upon the artwork. Instead, the mixture of intense and subtle variations of ink on paper cries out for discovery. Predetermined form or image does not chain your imagination. Such a hint at realism may be intentional by the artist, or, as is more often the case, purely coincidental. Too often the brain gets programmed to react a certain way.
Color can serve to immediately prejudice a response in a viewer.
Free to work its magic and come forward with an opinion uniquely you. The imagination is truly set free. What is seen from one angle often disappears from another viewpoint.