they serve my purpose just as served by the embroidered mark on Siegfried’s cloak. That at which the interpretation of the dream can be started… he hastily covers the weak spots in the dream’s disguise
Freud uses the cloak as a technical metaphor for dream-disguise, arguing that the dreamer’s verbal substitutions reveal the ‘weak spots’ in the cloak of manifest content through which the latent meaning threatens to emerge.
, The Interpretation of Dreams, 1900thesis