How does the reader know that this excerpt from "a good man is hard to find" is written in third person limited point of view?

What does water came out from a rock mean in this poem and why is it compared to the radio waltz? time was away and somewhere else. the waiter did not come, the clock forgot them and the radio waltz came out like water from a rock: time was away and somewhere else.

What is wrong with the sentence. the car is packed, we're already to go, and the weather is looking beautiful.

Why is reasoning relivant to reading and evaluate text?