What does Coueistic propaganda mean?

I believe that it refers to excessively optomistic Propaganda which incites people to believe that good will come of the actions being undertaken, regardless of justification. I am citing from "The God That Failed" edited by Richard Crossman page 206: "Once I was ill in Moscow for several weeks. After a time, when friends telephoned to inquire about me, Markoosha, my wife, would reply, "He's much better but he doesn't know it yet." That is the domestic version of "Soviet realism," intended, since it was said in my hearing, to serve as a kinda of Coueistic propaganda." It goes on to describe "Soviet realism" instead of propaganda but since elsewhere on the web "Coueistic" refers to excessive optomism, I would assume that this is the meaning in terms of propaganda.