The Life of the Bee is not a manual of beekeeping but a long meditation by a poet who kept bees for twenty years. Maeterlinck announces at the start that he will not adorn the truth or add to the wonders the hive already holds, and that wherever he reaches the unknown he will declare it plainly rather than fill the gap with legend.
He follows a hive through a single year so that the great episodes arrive in their natural order: the gathering and departure of the swarm, the founding of a new city, the birth and combat of young queens, the nuptial flight, the massacre of the males, and the return of winter sleep. Along the way he describes the strict division of labor, the building of the wax comb, and the dense crowd in which a bee must live or else die of loneliness.
The book's central idea is what he calls the spirit of the hive. It is not the queen and not blind instinct, but a power that regulates the number of births to match the flowers, decrees when the queen must depart, permits or forbids the slaughter of rival princesses, and finally fixes the hour of the swarm. The individual bee counts for almost nothing under it; she is a winged organ of the race, and her whole life is a sacrifice to a being that outlasts her.
The most haunting episode is the nuptial flight. The young queen rises into a height no other bee reaches, pursued by the drones, until the strongest alone overtakes her in the open air. In that instant of union the male is destroyed, his body dropping into the abyss, so that the same law that bred hundreds of useless males now sacrifices the chosen one to the future of the hive. Maeterlinck reads in this the strange double nature of nature itself, at once prodigal and thrifty, magnificent and cruel.
The closing chapter answers an objection: that the bee has not changed in thousands of years and so shows no progress. Maeterlinck traces a long ascent from the solitary, half-starved Prosopis to the organized hive, reading it as the slow work of a will in matter that reaches toward more intelligence and more security. He defends the hypothesis of evolution not as certain truth but as the belief that keeps the ardour for research alive, and he leaves the reader with confidence in life held as a first duty even where life itself gives little comfort.