Anxiety warns us that danger lurks. It fuels planning and replanning, searching for alternative ways out, rehearsing action.
Depression marks the loss of something very dear to us. Depression urges us to divest, “decathect,” fall out of love, mourn, and ultimately resign ourselves to its absence.
Anger, highly opinionated, warns that something evil is trespassing against us. It tells us to get rid of the object, to strike out against it.