{i} compulsive thought, fixation; craziness about a certain issue; excessive preoccupation
If you say that someone has an obsession with a person or thing, you think they are spending too much time thinking about them. She would try to forget her obsession with Christopher 95% of patients know their obsessions are irrational. an extreme unhealthy interest in something or worry about something, which stops you from thinking about anything else
A negative thought we cannot let go of Something that has no basis in reality but still drives us
The state of being besieged; used specifically of a person beset by a spirit from without
Persistent, intrusive thoughts, ideas, impulses, or images that repeatedly enter a person's mind Obsessions are seemingly beyond one's will, and awareness of their inappropriateness is of little or no help in controlling them Obsessions and obsessive interests are a common feature of autistic spectrum disorders See also Obsessive Compulsive Disorder
A persistent, repetitive, and unwanted thought Cannot be eliminated by logic or reasoning
a recurrent and persistent thought, impulse, or image experienced as intrusive and distressing