If this was a book, I would not leave it blank. I would, instead leave a writing prompt. It may even say something like:
If you were transported back in time to live five years of your life among the Samurai Warriors only to be transported back to this moment of life right before a striking blow of death in battle, do you think you would look at this world differently?
How do you think living with a singular pursuit of mastery over yourself in preparation for battle would change how you look at challenges upon your return to the modern world?