If we don’t change the direction we are headed, we will end up where we are going.
– Chinese Proverb
We can know what we want to do, or dream about the life we'd like to live, but it's the actions we put forth that really dictate how our life turns out.
Thus, if we really want to go west, but continue walking north, we won't get to where we need to go.
However, it's important to remember that this works in the positive sense too: if we want to go west, and keep walking in that direction, we will eventually arrive at our destination.