People often find a paradox: if the goal, Nibbana, is by definition uncaused, how can a path of practice – which is causal by nature – bring it about?
In the Milindapañha, the monk Nagasena replies to this question with an analogy. He says:
The path of practice doesn’t cause Nibbana, it simply takes you there.
Just as the road to a mountain does not cause the mountain to come into being, it simply leads you to where it already is.
Extract from p55, The Island by Ajahn Passano and Ajahn Amaro.