In his pamphlet What is To Be Done, written in 1902, Lenin declared:
History has now placed before us an immediate task which is far more revolutionary than the immediate tasks of the proletariat of any other country. The completion of this task, the destruction of the strongest bulwark of European, and we may even say Asiatic, reaction would make of the Russian proletariat the vanguard of the international proletarian revolution …
What Lenin meant by this challenging statement was that the Russian proletariat, by overthrowing Russian Tsarism, would open the path to proletarian revolution in the West. This idea, though unrealistic, as subsequent events were to prove (the overthrow of Tsarism did not produce the European revolution), is nevertheless. extremely important in world history. The adherence to it, however irrationally, on the part of Lenin and the Bolsheviks, provided a kind of world mission and supplied them with tremendous motivating energy even at times when conditions of life for the Party, not to mention chances for revolution in Russia, seemed at the lowest possible ebb.