Interior monologues are common devices across the range of dramatic media(plays,films,etc.),and also effective approaches in novels,especially used interchangeably with stream-of-consciousness in modernist psychological novels.William Faulkner employs several modes of them,encompassing direct interior monologue,soliloquy,and omniscient description in his stream-of-consciousness masterpieces The Sound and the Fury and As I Lay Dying to mirror consciousness at different levels.This paper attempts to differentiate these modes and analyze their respective effects in representing the subtle movements of the psyche processes,thus giving a glimpse of Faulkner’s highly skilled craft of capturing and preserving the complicacy and fluidity of consciousness.