Expressing bereavement is a way of expressing sorrow or grief for the loss of a loved one. It can be done through words, gestures, or symbols. Mourning is an important part of the grieving process and is a way to honor the deceased. Mourning can take many forms, such as wearing black clothing, attending funerals, or writing letters of condolence. It is a way to show respect and love for the deceased and to help cope with the pain of loss.