The paper nautilus is a small sea creature that crafts a delicate, translucent shell to house her incubating eggs. She serves as the poem's central subject, embodying intense maternal devotion and the physical endurance required for creation. She willingly starves herself to guard her fragile shell, relying entirely on her instincts and physical strength to survive the unforgiving ocean environment.

The unnamed voice of the poem operates as a meticulous observer of the natural world. The speaker maintains a respectful distance while watching the sea creature, detailing the animal's physical actions with precision. This perspective firmly positions the creature's natural instincts and maternal sacrifices as superior to human desires for recognition or commuter comforts.

The incubating eggs housed securely within the paper nautilus's shell. They rely entirely on their mother's protective embrace and the structural integrity of the fragile, glass-like home she builds. Their gradual development drives the mother's intense vigilance and ultimate physical sacrifice.