一个人一场梦此心不二两个人一台戏此生唯一
[yī gè rén yī chăng mèng cĭ xīn bù èr liăng gè rén yī tái xì cĭ shēng wéi yī]
The saying poetically illustrates the duality in love - experiencing the world as both solitary dreams and duet plays, highlighting the depth of emotions felt uniquely in solitude versus with a companion, expressing a yearning for lifelong devotion and loyalty.