permissible and customary means of expression even in our conscious thought. The dream-work, however, exaggerates the application of these means of indirect expression to an unlimited degree. Under the pressure of the censor any kind of association becomes good enough for substitution by allusion; the displacement from one element to any other is permitted. The substitution of the inner associations (similarity, causal connection, etc.) by the so-called outer associations (simultaneity, contiguity in space, assonance) is particularly conspicuous and characteristic of the dream-work.
The Difference between Dream-technique and Wit-technique
All these means of displacement also occur as techniques of wit, but when they do occur they usually restrict themselves to those limits prescribed for their use in conscious thought; in fact they may be lacking, even though wit must regularly solve a task of inhibition. One can comprehend this retirement of the process of displacement in wit-work when one remembers that wit usually has another technique at its disposal through which it defends itself against inhibitions. Indeed, we have discovered