I just impressed my friend. He was confused why the Organization members return in human form through Dream Drop Distance. I explained that they were once humans, but they turned into a heartless and nobodies. He understood that part, but he didn't understand why they can return to human form. So I said...it's like science. You know. A negative and a negative = a positive. He said he was impressed by my example. Who knew science could help with the Kingdom Hearts series!
A negative and a negative will always equal a negative by addition; a double negative makes a positive, in both arithmetic and English. c;
And if you find the root of a negative all that will be left is your imaginary friend. And if it's in an exponential it'll have meaning as an oscill-