The Interpretation of Dreams by Sigmund Freud Chapter 5 Page 13

To save, especially to save from the water, is equivalent to giving birth when dreamed by a woman; this sense is, however, modified when the dreamer is a man.

Robbers, burglars at night, and ghosts, of which we are afraid before going to bed, and which occasionally even disturb our sleep, originate in one and the same childish reminiscence. They are the nightly visitors who have awakened the child to set it on the chamber so that it may not wet the bed, or have lifted the cover in order to see clearly how the child is holding its hands while sleeping. I have been able to induce an exact recollection of the nocturnal visitor in the analysis of some of these anxiety dreams.

The robbers were always the father, the ghosts more probably corresponded to feminine persons with white night-gowns.