Pets can provide comfort and companionship to those experiencing grief by offering unconditional love, companionship, and a sense of routine and normalcy. They can act as a source of emotional support, provide a distraction from the pain of loss, and offer physical touch and affection, all of which can help ease feelings of loneliness and sadness during the grieving process. Additionally, caring for a pet can create a sense of purpose and responsibility, which can be beneficial for those dealing with grief.