"Why couldn't Jiji speak at the end?"
"Sometimes we become speechless. When they're together at the end, there's nothing to say [...] But he came, right? What could he possibly say? [...] That her magic is back? Her magic deepened, you see. Would you prefer if Jiji said something like "See what happens without me?". That's annoying, you'd tell him to shut up. When you gain, you also lose."
Hayao Miyazaki, The Kingdom of Dreams and Madness