The quote illustrates a sense of isolation and protection from a chaotic external world. The imagery of a shell suggests that the character has withdrawn into a safe space, away from the tumult of life outside. This refuge symbolizes a desire to escape the overwhelming nature of reality, much like a mollusk retreating into its shell for safety.

Moreover, the mention of hearing only the "sea of an inimical world" emphasizes the character's awareness of the dangers and complexities that exist beyond her protective barrier. It reflects a poignant struggle between seeking comfort and confronting the harshness of life, highlighting the themes of vulnerability and resilience that are prevalent in Kundera's work.