花非花雾非雾情非情爱非爱
[huā fēi huā wù fēi wù qíng fēi qíng ài fēi ài]
'Not Really Flowers or Fog, Not Truly Love or Passion' borrows lines from ancient Chinese poetry by Li Shangyin which suggest an indescribable yet deep and complex sentiment, evoking ambiguity in beauty, emotion, or passion.