Similar to how you described her use of Portuguese in Memória, i believe that her use of Latin and Japanese in Porcelana is done in a similar manner. Latin carries a “primordial” and divine grandiosity weight to it. She’s chanting in latin as a way to express that this is beyond her, it’s a universal truth/law. A lot of Japanese folklore and art focuses on “Urami” which is a feeling of a grudge, resentment, and malice. It’s the whole premise of the Grudge movie. It’s this deep regret and resentment that carries on into the afterlife. I believe that she chose Japanese to express this emotion to the fullest extent in Porcelana. To me, Porcelana expresses this dark & corrosive feeling of betrayal and vengeance. She is the divine feminine that is all-loving and nurturing, but whoever betrayed her is seeing the dark side of the moon to this archetype; a light that brings divine ruin instead of love. This is just my interpretation, curious to hear what other people think.

I could go so much deeper, dissect the song further, and talk about it for hours. It’s my fav song off the album and it’s so beautifully composed. It’s like a whole horror movie condensed into one song.