As he lies dying in Chapter 9, Johnny Cade speaks these words to Ponyboy.
By agreeing on the basic fact that rich and poor people look at the same sun, Ponyboy and Cherry take a small step toward a potential reconciliation between the rival gangs.
This moment of concord comes early in the narrative, and its idealistic tone makes the rifts and violence to come all the more painful.
Ponyboy feels more comfortable with Soda, Darry, and Two-Bit because as a narrator, and later a writer, he is more comfortable with fictional heroes than with real people like Dally who have lost their innocence.
Johnny, on the other hand, though quieter and more timid than Ponyboy, finds it in himself to admire Dally and to look past his intimidating exterior.
He realizes that, even though the two groups have unequal lifestyles, attitudes, and financial situations, they nevertheless live in the same world, beneath the same sun.