It’s one theory at least:
The physical world of hoarders, [Psychology professor Randy] Frost has observed, is much more expansive than what the rest of us perceive, and is often free of the rules that we are wont to impose. Even more intriguing, Frost told me that some of the neurological hallmarks of hoarding might indicate a giftedness in the aesthetic appreciation of the physical world, rather than pure illness. One of his patients had a pile that built up in the middle of her dorm room over the course of a week; she started perceiving shapes, colors, and textures, and it became a work of art—something with aesthetic value. “She couldn’t dismantle it, because that would destroy it,” Frost said.