Forget all the Disney songs for a second—the novel is a collection of stories, really, and the central one follows Mowgli’s struggle to belong. He’s raised by wolves, taught by Baloo and Bagheera, but constantly threatened by Shere Khan. That tiger wants him dead for being human, which sets up this primal conflict. The plot is basically Mowgli learning the laws of the jungle to survive and eventually confronting his own kind, too. It’s not a straight hero’s journey; it’s more episodic, with him dealing with the Monkey People, the red dogs, and the human village. Kipling uses it to explore belonging versus identity, nature versus nurture. The ending isn’t a neat wrap-up either—Mowgli leaves the jungle, but it’s bittersweet, like he’s outgrown both worlds in a way. I always found the last line about the seasons passing super melancholic.
Reading it as a kid, I just wanted more adventures with Kaa and the elephants, but the underlying tension about where Mowgli fits hits harder as an adult. The 'Red Dog' chapter, with that massive pack invasion, is brutal and thrilling in a way the adaptations rarely capture.