In Stephenie Meyer's novel "The Host," the story explores the complexities of human emotions and identity through the experiences of its characters as they navigate a world invaded by alien souls. The protagonist, Melanie, struggles with the presence of an alien consciousness that inhabits her body, leading to a unique dynamic where both entities must learn to coexist. This unusual partnership challenges traditional notions of self and prompts deep reflections on love, sacrifice, and what it means to be truly human.

The phrase "Strange world isn't it?" encapsulates the essence of the narrative. It highlights the surreal and often perplexing nature of the characters' experiences in a world turned upside down by alien forces. As they confront their fears and forge connections, they discover the richness of their own humanity, even in the face of overwhelming odds. The story ultimately suggests that even in a strange world, the bonds we form and the choices we make define our existence.