This quote describes Sonya and Raskolnikov's love for each other. Sonya believed that confessing is the best choice. Raskolnikov confesses and feels relieved and happy. He is finally free from all his mental, emotional and physical suffering.
Try never to run away from pain, suffering and sacrifice. These are where the challenge to change, to grow, to become 'more' come to rest squarely on our shoulders. The opportunity to turn burdens in to something beautiful.
Cancer quotes from a mom who went through it on suffering. It's hard to deal with our own pain and suffering, it takes courage and fortitude to do so. But our own pain and suffering pale in comparison to.