"The dark shadow we seem to see in the distance is not really a mountain ahead, but the shadow of the mountain behind - a shadow from the past thrown forward into our future. It is a dark sludge of historical sectarianism. We can leave it behind us if we wish"

In this quote, David Trimble is using the metaphor of a dark shadow to represent the sticking around results of past conflicts and divisions. He suggests that what may appear to be a looming challenge in our course is really just a forecast of past events and attitudes. Trimble thinks that this "shadow" is an outcome of historic sectarianism, or the division and hostility in between various groups based upon spiritual or political beliefs. However, he also provides hope by stating that we have the power to move past this shadow and leave it behind if we pick to do so. Ultimately, Trimble is prompting us to let go of the past and work towards a more united and peaceful future.