Shortly after the Soviet occupation 1968, Blažek was declared as "evident opponent of the Communist regime" and consequently banned from all artistic activities. He swore not to shave until the Russians left his country, though he never stopped painting. Instead he created his own world aptly called "an enforced paradise" by art critics.
"Behind the folkloric phase in the beginning of the 70’s, there’s theenforced paradise. Backed into a corner, refusing to choose between either the avant-garde or the official way, Blažek chose his own way and became an outsider. In his seemingly joyful art we see a great deal of suffering. And this duality makes his work very interesting." Dusan Brozman, art historian