In "Catch-22" by Joseph Heller, the character Major Major reflects on a saying his father often shared: that opportunity is rare and only comes once in a lifetime. This sentiment underscores the idea that one must seize chances when they arise, as they may not come again. Major Major's father's repetition of this phrase adds a layer of irony, suggesting that despite its wisdom, it may not always hold true in life's complexities.
The quote highlights the themes of missed opportunities and the absurdity of military life, which are prevalent throughout the novel. Characters like Major Major navigate a world filled with bureaucratic challenges, where chance encounters can drastically alter their fate. In this context, the father’s joke serves not only as a humorous remark but also as a poignant reminder of life's unpredictable nature.