I finally made a worthwhile theory. The master , Luxu, the X-blade, and the box. I think I figured it out. Why does the master seems like he controlling the events? Why keep the box from the other Foretellers? Why does luxu gets his keyblade? I think I have a plausible answer. The Master wanted to see darkness rise. It makes no sense, but let me explain. The box I believe is the fragments of the X-blade. But I believe it was broken before the war, in order to cause chaos when it's summoned. This is a cause and effect basically it's what it is. What if he took away the X-blade when the war happens? Remember he told luxu something and I think that what it was. The shock of the X-blade being taken away in a time of need. And remember he made the book of prophecies yet luxu is shocked. Why be shocked about something if events are gonna come into place? And why go away and give luxu a keyblade? Well it's a stretch but hear me out. If the master was known to cause the conflict indirectly, the Foretellers will be asking why. So I believe he gave luxu the gazing eye he can see what he done after the war. Luxu was to see the war because of the keyblade. So him and the master can see the war. That's why I believe Ava attacked luxu in chi. Because she caught what was going on. And the reason he wanted to be passed down is beyond me, but I believe he also wanted another war happen. Think about his keyblade is the oldest keyblade known, so his eye she still be in effect. And this is a big stretch: The master is seeing all of the events that master xehanort does. And that's maybe we have medals and cards. Because he saw the future to a great extent. It's not like time travel where you have to exist at a certain point in time, he's seeing the future with something that can exist for long periods of time. A inanimate object is a perfect to see everything. And on side note before I end, Remember Kingdom Hearts fell to darkness? I also believe that Kingdom Hearts in realm of darkness is part of the master's plan. In conclusion to all this: The Master is could still be alive in the realm of darkness since time is really slow(Remember black coats help in R.O.D.). That's as best I got. Comment if something doesn't seem right, and if you agree to add. I worked really hard on this.