痴情不变将爱流芳百世痴心不改将情埋葬死海
[chī qíng bù biàn jiāng ài liú fāng băi shì chī xīn bù găi jiāng qíng mái zàng sĭ hăi]
The meaning is that 'Undying passion makes love last forever; Unchanging madness entombs the sentiment within Dead Sea' - a poetic way to express unswerving and eternal passion. There's also melancholy here: While love is hoped to persist beautifully in memories forever, the passionate emotion seems resigned to burial in the desolation of the Dead Sea.