The book "How to Fall in Love" by Cecelia Ahern explores the nature of our thoughts, particularly regarding mental health and emotional well-being. It emphasizes that our thoughts are not fixed and can be influenced by our actions and perceptions. Understanding the distinction between suicidal thoughts and genuine feelings is crucial for emotional growth.

Ahern encourages readers to recognize that suicidal thoughts are not definitive indicators of their emotional state. By separating these thoughts from their true feelings, individuals can gain clarity and start to navigate their emotions more effectively. This realization is a step towards improved mental health and self-acceptance.