In this passage from "Les Misérables," the character experiences a profound realization about love and devotion. He understands that the presence of the woman he cares for becomes the focal point of his existence. Her well-being becomes paramount, overshadowing his own needs and fears. This shift in perspective signifies that his love for her offers him a sense of purpose.

As he wraps her in his coat to keep her warm, he is so absorbed in caring for her that he becomes numb to his own discomfort. This selflessness highlights the depth of his affection and the transformative power of love, which drives him to prioritize her safety and happiness above all else.