I don’t want to get so focused on the Forbidden City reference, but there are some interesting possibilities. From this blog called K in the Clouds: https://kblog.health.blog/2020/11/01/forbidden-city/ - the Forbidden City is also known as the Sea of Palaces. Ties into the Titanic reference. Within the Forbidden City is one area called the Back Palaces (3). One of these palaces is called the Palace of Heavenly Purity described as: “ Apart from being a residence, the Palace of Heavenly Purity was also used as a temporary shelter for the bodies of deceased emperors prior to their burial. In addition, it was the arena of power handover, as emperors reigning after Emperor Kangxi followed the tradition of placing the name of the desired successor behind the plaque that reads ‘Be open and above board (正大光明)’ in the main hall of the palace.”
I don’t want to get so focused on the Forbidden City reference, but there are some interesting possibilities. From this blog called K in the Clouds: https://kblog.health.blog/2020/11/01/forbidden-city/ - the Forbidden City is also known as the Sea of Palaces. Ties into the Titanic reference. Within the Forbidden City is one area called the Back Palaces (3). One of these palaces is called the Palace of Heavenly Purity described as: “ Apart from being a residence, the Palace of Heavenly Purity was also used as a temporary shelter for the bodies of deceased emperors prior to their burial. In addition, it was the arena of power handover, as emperors reigning after Emperor Kangxi followed the tradition of placing the name of the desired successor behind the plaque that reads ‘Be open and above board (正大光明)’ in the main hall of the palace.”