Long Answer:
In The World: Ponyboy and Johnny are ambushed by a group of Socs. Because Ponyboy is without a weapon, he quickly is beat down in the fight; when he awakens from his unconscious state, he discovers that Johnny has killed one of the Socs. With the help of Dally, Ponyboy and Johnny make their escape, hopping on a train to Windrixville and hiding out in an abandoned church. Ponyboy claims about this journey: "This is the country, I thought half asleep. My dream's come true and I'm in the country."
This is ultimately ironic because Ponyboy's fantasy about living in the country always involved him living a more peaceful life; now that he has finally ended up in the country, he is there as a result of extreme disruption and to hide from the police. The environment is right, and the circumstances are all wrong.
The echoing sound of his voice shows his excitement that his brother is communicating
