The best connection between "If" and The Jungle Book is:
“If” is a poem about becoming an adult. Rudyard Kipling lists several characteristics of a strong man. The Jungle Book is a fictional story about a boy becoming a man in the jungle. Both writings show the difficulty of leaving childhood to become an adult.
This connection highlights the thematic similarities between the two works, focusing on Mowgli's journey and growth as he navigates challenges and learns to become a strong individual, paralleling the advice given in "If" on character and maturity.