In “Dream Work and Remembering in the Light of Dissociation and Reassociation Processed in the Preconscious,” the author contends that the mechanisms of dream work can be traced back to a process of alternation in the psyche between dissociation and reassociation. Drawing on findings from stimulation experiments in a sleep lab, the author first discusses dissociative processes in dreams. He marshals evidence suggesting that block-ading (of concise meaning) and sequentialization qualify for definition as dream work mechanisms, alongside fragmentation. Indissolubly bound up with the dissociation process is a process of reassociation, in which the fragments are reassembled into a whole. The author sees dissociation and reassociation as operations of the preconscious and the unconscious. An initial attempt is made to extend these findings to remembering and memory.