In Marian Keyes' book "Rachel's Holiday," the author explores the complexities of addiction and how it consumes a person's life. The quote highlights how addicts become so focused on their habits that they lose interest in various aspects of their existence. Their addiction takes precedence over relationships, personal growth, and overall well-being.

This depiction emphasizes the struggles faced by individuals grappling with addiction. It illustrates the isolating nature of such a lifestyle, where maintaining the habit overshadows everything else, highlighting the urgency and desperation often associated with addiction.