Final answer:
A driver metaphorically represents a leader guiding a state towards the 'destined' endpoint of communism, as per Marxist theory. The leader, like a train driver, manages the journey until the state is no longer needed.
Step-by-step explanation:
The question presented asks about the role of a driver, using an analogy related to the historical journey of communism as observed through Marxist theory. In this context, the driver's role involves crucial tasks such as keeping the engine running, avoiding pitfalls, and managing speed and braking. The locomotive symbolizes the historical process, where the path towards the destination, in this case, communism, is considered to be predetermined. The leader, akin to a train driver, is envisioned as a caretaker of the state, guiding it towards a future point where the state itself will become obsolete and disappear. In this analogy, the leader's relevance dissolves once the predetermined endpoint of communism is reached, much like the purpose of the train and its driver no longer exists once the final station is attained.