In Stephenie Meyer's novel "The Host," the unconventional nature of love is explored through an unusual metaphor. The quote "How could you fall in love with a three inch worm?" reflects the idea that love can develop in unexpected ways and defy initial appearances or perceptions. This point emphasizes the theme that true affection can flourish regardless of superficial traits or the outer form of an individual. It invites readers to contemplate the depths of emotional connection beyond physicality.

The story itself revolves around complex relationships set in a sci-fi context, where characters grapple with their identities and feelings. This quote serves as a pivotal moment that challenges characters to look beyond the surface, suggesting that what truly matters in love is not physical appearance but the essence of the being underneath. Such a notion resonates throughout the narrative, illustrating the multifaceted nature of love and the connections that can arise in unforeseen circumstances.