Jacob’s profound paternal anxiety and the sheer fragility of his family are laid bare following the loss of Joseph. The prospect of losing his youngest son carries devastating consequences, threatening not only the boy's physical safety but also the father's very survival.
Removing Benjamin from his father's presence is an act of severe consequence. Unlike Joseph, who set out on his own accord, Benjamin is being taken away by force, compounding the tragedy of his brother's prior misfortune [מלבי״ם]. This removal tears Benjamin away from the intense, protective shelter of his father's watch and casts him out toward a distant, unknown place [העמק דבר, מלבי״ם].
The fear of a sudden disaster specifically points to an unnatural, accidental death [רמב״ן, מזרחי]. Commentators identify two distinct layers to this danger. On a physical level, Benjamin is a gentle youth, completely unaccustomed to the harsh realities of travel. He is highly vulnerable to shifting climates, the grueling tolls of the journey, or attacks by wild animals [רמב״ן, ביאור יש״ר]. On a spiritual level, the open road is inherently prone to tragedy. There is an established principle that negative spiritual forces seek to accuse and harm a person during moments of vulnerability. Simply leaving the safety of home to embark on a perilous journey invites these destructive forces into a person's life [רש״י, גור אריה, מזרחי].
Should this fear materialize, the resulting grief would drag Jacob down to his grave. As long as Benjamin remains by his side, he serves as a living comfort for the painful absence of Jacob's beloved wife, Rachel, and his lost son, Joseph. If Benjamin were to die, that fragile comfort would be completely shattered, leaving Jacob to feel as though he had lost all three of them on the exact same day [רש״י, מזרחי].
Some commentators note a specific distinction in how Jacob's potential demise is described, emphasizing a state of utter ruin rather than standard grief. A man living without his wife is already considered to be living in a reality deprived of good. Benjamin serves as the final, delicate link protecting Jacob from the dark reality of Rachel's absence. Ripping him away would plunge Jacob into absolute darkness [שפתי חכמים, יריעות שלמה, גור אריה]. Furthermore, passing away amidst such profound weeping and sadness is viewed as a negative omen for the deceased himself [העמק דבר].
Ultimately, this vivid portrayal of total family ruin serves a dual purpose. It is a desperate plea meant to awaken mercy in the Egyptian ruler, but it also stands as a firm warning. It cautions against the severe fallout—such as a grieving father's curse or the violent rage of the brothers—that would erupt if harm came to Benjamin, a son whose future territory is destined to host the Divine Presence [צאינה וראינה].