When someone dies, their loved ones feel very sad and they might cry a lot. Some people have a special way to show their sadness and it's called "keening." Keening is a type of singing or wailing in a loud, high-pitched voice. It sounds a little bit like crying and screaming mixed together! People who knew the person who died would come together and take turns keening. This was a way to show that they were sad and to honor the person who had passed away. Sometimes, people would even hire a professional keener to come and sing for them. In some cultures, keening is still practiced today, although it's not as common as it used to be.