In Victor Hugo's "Les Misérables," the quote highlights the concept that great achievements often arise from bold decisions. It suggests that taking drastic action can lead to preservation and salvation in dire circumstances. By embarking on a perilous journey, one may find a way out of seemingly hopeless situations.

The metaphor of death as a means of escape implies that sometimes, letting go or facing the end can lead to a new beginning. The image of a coffin as a plank of safety underscores the paradox that in moments of despair, extraordinary solutions can emerge, reflecting the resilience of the human spirit.