Ideally the class is about finding a balance between the two. Being comfortable with the fact that hiding, sneaking and all that is sometimes as much a valid strategy as being bold. I can imagine it as the shadows being a cloak made from your own negative experiences. When it hides you, it's because you're used to being ignored, when it protects you, it's because you it's because you've had worse/the attack doesn't matter to you. When you use it to attack, it's you sharing that negativity with others.<br/><br/>The light is the opposite, it's generated by everything positive about you. It's your courage, your confidence and your desire to be the better person. When it hides you, it's because you it's because you refuse to look weak. When it protects you, it's because you refuse to be a victim. And when you use it to attack, it's with firm righteousness in mind.<br/><br/>Of the two, the light sounds better, more healthy, but both parts are a part of who Lily is. Ignoring one side in favor of the other woul be like trying to live a half life. At least, that's my take on it.