Mindy Kaling's book "Why Not Me?" explores the complexities of success and the reactions it provokes in others. When an individual achieves their goals, it can create feelings of inadequacy or regret in those who have not reached similar milestones. This emotional response can lead to a desire among these individuals to undermine the successful person's accomplishments, stemming from their own insecurities.

Kaling emphasizes the importance of perseverance in the face of these external pressures. She highlights that, despite the challenges and negativity that may arise from others, one should remain steadfast in their pursuit of happiness and success. Overcoming such obstacles is crucial, as allowing others to derail personal achievements can lead to regret and missed opportunities.