Answer:
Step-by-step explanation:
The passage communicates that mongooses, like the protagonist Rikki-tikki, have a natural instinct and purpose to fight and eat snakes. When Nag, the cobra, tries to intimidate Rikki-tikki by claiming that he is the great God Brahm, Rikki-tikki is initially afraid but quickly overcomes his fear. This is because he knows that his role in life as a mongoose is to confront and defeat snakes. The passage also reveals that Nag, despite his attempts to appear fearless, is actually afraid deep down, recognizing the mongoose's natural ability to be a formidable opponent for snakes.