This phrase suggests a voluntary decision to avoid others, not just being alone.

Social Choice

It often indicates a coping mechanism in response to emotional stress or pain.

Emotional State

It's used metaphorically and doesn't mean physically closing something.

The phrase is used when someone is trying to protect their feelings.

Implies creating a buffer or distance from one's own emotions.

Sometimes the action can be seen as a way to regain emotional control.

Used when someone ignores certain thoughts to concentrate or feel better.

It involves choosing what to think about and what to disregard.