In "Night Talkers" what exactly are they?
The "night talkers" are those, like Dany and Estina, who seem to speak their dreams "aloud in the night," and therefore who somehow derive their moral characters from the dreams. Even though they cannot remember the details, the implication is that the serious issues of vengeance and anger are to be overcome through this means, as Dany does with Bienaimé, even though he is certain that Bienamé was the man who killed his parents. Claude’s capacity as a night talker is clear at the story’s end, when he continues speaking from darkness until daylight. The symbolism here is that through this special facility of mind—"night talking"—the rueful effects of violence can be overcome.