Mourning is an illness if it goes on very long. Traveling through the valley of grief is like taking a journey through unknown territory. Things once held constant may suddenly vanish in an emotional flux. The daily activities of life impose an intolerable burden on one's defenses. Depression comes from nowhere and seems magnified at night.
Anger erupts without warning and anything or anyone can be the target.
Familiar situations may cause a frightening, unpredictable response. It brings about an unwelcome change in one's social structure. Persons once counted on in times of stress are unable to handle the bereaved's pain. The world seems cold and frightening. The beloved is a reference point for interpreting one's past and present.