Both his patriotic and pantheistic poems had an enormous influence on later Russian literature. Boris Pasternak, for instance, dedicated his 1917 poetic collection of signal importance to the memory of Lermontov's "Demon". This long poem (started as early as 1829 and finished some ten years after) told the story of a fallen angel admitting defeat in the moment of his victory over Tamara, a Georgian "maid of mountains". Having read by censors as the celebration of carnal passions of the "eternal spirit of atheism," it remained banned for years (and was published for the first time in 1856 in Berlin), turning arguably the most popular unpublished Russian poem of the mid-19th century. Even Mirsky, who ridiculed Demon as "the least convincing Satan in the history of the world poetry," called him "an operatic character" and fitting perfectly into the concept of Anton Rubinstein's lush opera (also banned by censors who deemed it sacrilegious) had to admit the poem had magic enough to inspire Mikhail Vrubel for his series of unforgettable images.