The quote from Lawrence Durrell's "Justine" humorously questions the origin of the human heart, implying curiosity about its creator. It reflects a playful pondering on human anatomy and the mystery behind biological creation.
The line also hints at a curiosity about history and punishment, as it asks for the location of the person who invented the heart to be hanged. This combination of scientific wonder and dark humor showcases Durrell's literary style and philosophical musings.