“Effort in the Calvinist doctrine had still another psychological meaning. The fact that one did not tire in that unceasing effort and that one succeeded in one's moral as well as one's secular work was a more or less distinct sign of being one of the chosen ones. The irrationality of such compulsive effort is that the activity is not meant to create a desired end but serves to indicate whether or not something will occur which has been determined beforehand, independent of one's own activity or control. This mechanism is a well-known feature of compulsive neurotics. Such persons when afraid of the outcome of an important undertaking may, while awaiting an answer, count the windows of houses or trees on the street. If the number is even, a person feels that things will be alright; if it is uneven, it is a sign that he will fail. Frequently this doubt does not refer to a specific instance but to a person's whole life, and the compulsion to look for "signs" will pervade it accordingly. Often the connection between counting stones, playing solitaire, gambling, and so on, and anxiety and doubt, is not conscious. A person may play solitaire out of a vague feeling of restlessness and only an analysis might uncover the hidden function of his activity: to reveal the future.

In Calvinism this meaning of effort was part of the religious doctrine. Originally it referred essentially to moral effort, but later on the emphasis was more and more on effort in one's occupation and on the results of this effort; that is, success or failure in business. Success became the sign of God's grace; failure, the sign of damnation.”