Dashi told Omi when he gave him the second puzzle box that “the box will open when the person who needs to open it most opens it”. The first and second puzzle boxes are presumably identical, and Dashi’s lock actually explains perfectly why Wuya was trapped for so long: at any given time, there is only one person who will be able to open the box, making it nearly impossible statistically for Wuya to be released.
The mechanics of being chosen by the box as “the person who needs to open it most” are a bit complicated. I would think that they would go something like this:
- You have to willingly open the box; you cannot be possessed or be forced by a second party into trapping or releasing someone or something.
- To trap someone/something, you must actually have a real need for it to happen. No petty reasons; the fate of the world must be at stake [which is not all that uncommon on Xioalin Showdown]
- To release someone/something, you must be on the same side as whoever/whatever is in the box. A Xiaolin monk would not be able to free a Heylin witch, for example, but an evil boy genius or cat burglar would.
- Like Dashi said, you have to need to open the box most. You have to be at the end of your rope, stuck on the wrong path, or even simply benefit more than any other person: why you need it most could be anything and it’s the box that decides if you are or are not the person. This condition makes the person who can open the box change and difficult to determine who the person who needs it most is.
Dashi needed to open the box to trap Wuya and save the world from darkness. Jack Spicer needed to open the box to give him a push in the wrong direction for his evil plan of world conquest; no one else at the time on the Heylin side could have benefited from Wuya’s help more. Raimundo needed to open the box because he had realized his mistake and he had to save his friends and return to the Xiaolin side. Katnappe needed to open the box because she was the only one who knew about Shen Gong Wu’s existance who both wanted to find them and needed Wuya to locate them for her [Jack no longer needed Wuya the most because he was already in the game and had robots who could detect the Wu].
TL;DR The puzzle box can only be opened under certain conditions and by a single person. The person who needs it most can change and any time and is determined by the box. Because the people who needed to release Wuya the most never found her box throughout 1500 years, she remained trapped until the box was given to Jack Spicer, who happened to be the current person who needed it most.
The Reversing Mirror’s abilities seems really straightforward, but it is actually rather versatile. While the ability to “reverse the effects of any Shen Gong Wu” isn’t really open to interpretation, there still remains a bit of wiggle room in the word ‘effects’. Does ‘effects’ refer to what the Shen Gong Wu does, e.g. the Tangle Web Comb ensnaring its targets, or how someone uses the Shen Gong Wu, e.g. where the Tangle Web Comb was aimed. We know it can mean either one because we’ve seen the Reversing Mirror make people grow with the Changing Chopsticks, solidify Wuya with the Serpent’s Tail, and cause the Fountain of Hui and the Eagle Scope to show the opposite of what the user searched for, and we’ve also seen Jack reverse attacks from Shen Gong Wu like the Ju-Ju Flytrap and the Woozy Shooter and Cyclops’ direction be changed while using the Wings of Tinabi.
The Reversing Mirror’s effect on Shen Gong Wu reminds me of acceleration’s relationship to velocity. Acceleration occurs when velocity’s magnitude or direction is changed, and the Reversing Mirror can be used to reverse Shen Gong Wu’s effect or direction. Because the user has an option on how to use this particular Shen Gong Wu, the Reversing Mirror’s effects are not obvious and therefore harder to counter.
TL;DR The Reversing Mirror is dependent on what the opponent does and what the user wants to do, so you cannot really predict what this Shen Gong Wu will do (unless you have tiger instincts).
If I was a father, I probably would not want my daughter to be in only girl in an entire temple, let alone share a room with three teenage boys, dividers between them or not. Kimiko is capable of taking care of herself, but she does get in plenty of situations that would make any parent concerned for their child’s safety. Kimiko would want to avoid making her father needlessly worry or provoke him into bringing her home to Tokyo, leaving her friends and her duty as a Xiaolin monk. So, in order to keep everybody happy, Mr. Tohomiko is not told the entire truth about what being a Xiaolin monk is like and what Kimiko does in order to maintain the balance between good and evil.
Kimiko, however, does email her father regularly with simplified versions of how her training is going and her opinions about the latest Goo Zombies video game.
Raimundo didn’t understand that his bed was a bed in the first episode, but otherwise we do not hear much about how the new monks took to their rooms. Kimiko, Raimundo, and Clay have been shown to be deep sleepers, and they were probably used to sleeping through various outside noise i.e. Kimiko and Rai both being from cities and Clay being from a ranch filled with animals. With that in mind, it makes sense that the three of them adjusted quickly to their new living arrangements.
Omi, on the other hand, is from a quiet temple and probably slept by himself in that bank of rooms until the other Xiaolin Dragons came to the temple. We also know that he balances on his head both when he meditates and when he sleeps. The pose probably helps him focus his mind and calm himself, resulting in him being able to sleep.
Hopefully, Omi adjusted like his fellow monks and now sleeps on his head sheerly out of habit. He probably finds it comfortable.
Sibini possessing Clay doesn’t count, for the record. Technically that was all Sibini’s doing, and Clay was never really evil, just possessed.
He’s worried about flying into a temper and getting into a fight because that would only justify the names he’s been called.
Le Mime’s powers extend to even being able to mime his opponent’s powers and strengths. It’s a double-edged sword, however; when mirror-miming Clay, he had Clay’s strength, but was personally unable to withstand the force he was miming.
Chase, Dashi, and Guan are brothers.
Guan, the oldest, was the most serious brother and held the other two in line. Dashi was unusually gifted in magic and laid back, preferring dozing to fighting. Chase was a powerful warrior who dabbled in magic, but still strove to be the best. After Chase betrayed them, Dashi used his magic to give Guan immortality to help the Xiaolin Dragons in history onward keep Chase at bay.