What does the phrase like the mountain waving its hand tell the readers?

- It's a metaphor.

Explanation:

The phrase in paragraph 7 is a metaphor that reflects how the boy feels when he is climbing the mountain. That is why, the story says that he feels better then: "He felt better then, and returned more cheerfully to the moving". So the phrase means that he doesn't have to be afraid of anything because everything would be okay.

say that the mountain waving it's hand is a metaphor and just another way to express details about the mountain and try to find some text evidence to support the answer i gave you

i hope this helps you!!!

So the phrase means that he doesn't have to be afraid of anything because everything would be okay