This is the path that leads from the cloud of anxiety, through the lamp posts of worry to the consuming darkness of paranoia. Paranoia is a defence against anxiety and against aggression. The latter is projected outwards, upon imaginary other, the agents of one's crucifixion. Anxiety is also a defence against aggressive impulses. Therefore, anxiety and paranoia are sisters, the latter but a focused form of the former.
Aggression has numerous faces.
One of its favourite disguises is boredom. Like its relation, depression, it is aggression directed inwards. It threatens to drown the bored in a primordial soup of inaction and energy depletion. But it is also threatening, perhaps because it is so reminiscent of death. I find myself most worried when I am bored.