A person's attachment status is a fundamental determinant of their relationships, and this is reflected in the way they feel about themselves and others. Neurotic patterns can be seen as originating here because, where core attachments are problematic, they will have a powerful influence on the way someone sees the world and their behaviour. Where there is a secure core state, a person feels good about themselves and their capacity to be effective and pursue their projects. Where the core state is insecure, defensive strategies come into play.
Jeremy Holmes, John Bowlby and Attachment Theory
attachment, psychology, relationships