There comes a day in every Padawan's life (and his or her training, which is his or her life) when a new understanding is achieved and vital decisions are finally settled. It is the day when he or she finally decides on a style of lightsaber. Is it best to fight with a single blade? A pair of them? Or a single weapon using double blades?
This is not something to be undertaken lightly or impulsively, but rather calmly, surely, and after much deliberation. It is a decision of utmost importance, one that determines their future fighting style and even (some say) their approach to understanding The Force.
Today... that decision has been made.