Dream-Work

In Freud's theory, the Dream-Work is the mechanism that distorts a dream's content, so as to conceal an unacceptable wish from the dreamer's conscious mind.  Freud discusses four major dream-work mechanisms:  condensation, displacement, considersations of representability, and secondary revision, which give dreams their bizarre, often disjointed character.

Source:

Freud, The Interpretation of Dreams