If you're like me, you won't get it till you read the comments. It reminds me of how, when I was a child, I asked an adult what Khizr was. He's a mysterious man dressed in green who appears in a lot of Muslim stories and rescues lost travelers and so forth. The man I asked intended to explain that Khizr is a sort of job title, like "guardian angel," rather than a personal name. But what he kept saying was, "Khizr is an office, not a person."
For years afterward, I believed that Khizr was a talking, flying, green office building.