This song may not really 'mean' anything, but it speaks to my freaking soul. It uses the human voice (and not to mention a mesmerisingly beautiful one at that) purely as an instrument in a way that I've never really heard before in a song, and just like how a piano doesn't speak a language but its notes can still play a melody with meaning, so does your voice in this piece. It combines the sounds of Latin, Spanish and Japanese seamlessly, with lyrics guided only by what syllables sound beautiful together.
Overall, I think this is a triumph of epic proportions for not just this musical style, but for music in general. It transcends the limits of language itself and forms something that is in fact incredibly deep and meaningful despite not translating to anything specific.
Simply put: Hania, you're a genius.