Psychologists have long struggled with how, precisely, to determine whether someone has a psychological disorder. The current viewpoint requires consideration of three primary criteria: psychological dysfunction, personal distress, and cultural expectations.

A faulty pattern of thinking, feeling, or acting

Explanation:

A mental disturbance may be a designation often used interchangeably with the terms mental disorder, psychiatric disorder, or mental disease. Mental disorder is a syndrome characterised by a clinically significant disturbance in a person's cognitive, emotion regulation, or behaviour that reflects a dysfunction within the psychological, biological, or developmental process underlying mental functioning. Mental disorders are usually related to significant distress in social, occupational, or other important activities.

it depends on which society you are referring to. many civilization performed rituals so the gods would with their growing season but the most well known is that of the aztecs. they would make sacrifices, usually animals, but sometimes humans as well.