The Interpretation of Dreams by Sigmund Freud Chapter 2 Page 3

There will be found no factor in the dream whence the chains of associations do not lead in two or more directions, no scene which has not been pieced together out of two or more impressions and events. For instance, I once dreamt about a kind of swimming-bath where the bathers suddenly separated in all directions; at one place on the edge a person stood bending towards one of the bathers as if to drag him out. The scene was a composite one, made up out of an event that occurred at the time of puberty, and of two pictures, one of which I had seen just shortly before the dream. The two pictures were The Surprise in the Bath, from Schwind's Cycle of the Melusine (note the bathers suddenly separating), and The Flood, by an Italian master.

The little incident was that I once witnessed a lady, who had tarried in the