The Interpretation of Dreams by Sigmund Freud Chapter 5 Page 48

(the dream was dreamed during the night before the expected meeting). The student to whom he gave the instruction is a particularly unpleasant fellow; he had said to the chemist: “That isn't right,” because the magnesium was still unaffected, and the latter answered as though he did not care anything about it: “It certainly isn't right.” He himself must be this student; he is as indifferent towards his analysis as the student is towards his synthesis; the He in the dream, however, who accomplishes the operation, is myself.

How unpleasant he must seem to me with his indifference towards the success achieved!

Moreover, he is the material with which the analysis (synthesis) is made. For it is a question of the success of the treatment.