The artist explains to a prospective buyer that an arm *is* a leg, cutting the price in half. Saale!
“If you dream correctly,” he explained afterwards, “you have purchased a whole museum inside the picture containing many more objects you now own. You’re welcome!”
She took the painting home using both her arms and legs to haul the massive object around. By doing so she has become a creature as well as creator. The door to her house becomes that of the museum. She steps inside the other world, waking up.