Evil? I see it as heroic.
I have an active imagination, so I thought up a kind of short story to go with the song:
A hero is at the top of a mountain fortress/temple. Wind and rain rage all around as the hero's greatest nemesis stands before him, a giant among men. If the hero cannont defeat this villan, the apocalypse will be upon us. The hero has come prepared, however. Summoning the spirits of legendary heroes from the past he battles the evil as it threatens to consume him. Thunder rages as they fight and one by one the heroes fall and are banished. But each, in turn, provides a crucial opening for the hero to strike. After a time the hero is once again alone, bruised and outmatched by his opponent. He fights valiantly, but after a time he is disarmed. Laughing in triumph the villan seizes our hero and prepares to devour him. Our hero despairs but then his comrade, whom he had thought slain, appears as if from nowhere (he is a ninja) and strikes a blow to the enemy's hand. As the villain nurses his injury the two friends face him together, ready for anything. The giant attacks with mighty blows that crack the ground, but to no avail. The heroes evade his aggression and respond in kind with their own. After the giant is finished by a strike form each hero he topples to the ground, and the world is safe. Glad to be alive, the two frinds start making their way down the winding mountain road that led them here, hoping that no such threat ever comes into existance again.