They are able to see the world so much more intricately than the rest of us in ways that most people will never be unable to understand. That sets them apart and makes their lives hell.
Madness string 98176
A black hole creates a hole in your perspective by trapping light that would have otherwise contributed to the image your eyes perceive. But I will note that any object between you and the source of light can cause a similar phenomenon. A solar eclipse is not a hole in the sun. Just because black holes achieve this through a unique means doesn't make them more deserving of being defined as holes, ontologically.