The quote implies that true understanding of the world comes from exploring the emotions and experiences held in people's hearts. It suggests that our perception of reality is shaped largely by our inner feelings and connections with others rather than simply by external observations. To grasp the essence of the world, one needs to engage deeply with individuals on a personal level.

This perspective emphasizes the importance of empathy and shared experiences. By living among others, rather than merely coexisting, one can gain insight into the richness of human existence. According to McCarthy, this profound knowledge comes from the relationships we build and the heart's capacity to reflect the true nature of the world around us.