The Interpretation of Dreams by Sigmund Freud Chapter 2 Page 49

In this case she would have been able to prolong her treatment by one year. The figures in the dream become important if it be remembered that time is money.

One year equals 365 days, or, expressed in kreuzers, 365 kreuzers, which is three florins sixty-five kreuzers. The twenty-one kreuzers correspond with the three weeks which remained from the day of the dream to the end of the school term, and thus to the end of the treatment. It was obviously financial considerations which had moved the lady to refuse the proposal of the directress, and which were answerable for the triviality of the amount in the dream.

3. A lady, young, but already ten years married, heard that a friend of hers, Miss Elise L____, of about the same age, had become engaged. This gave rise to the following dream: