Mourning
Mourning is also seen when things someone loves gets lost, although not as often. Most commonly seen is sadness, but typically a less intense but longer lasting feeling. Similar to melancholy. Mourning is only seen when a person (or animal, important object, or goal) is lost. Death is most commonly associated. Mourning is not just found in humans, but also in animals. Many birds have a sense of mourning when their mate dies.