天塌下来都不能分开风吹日晒都是为了爱
[tiān tā xià lái dōu bù néng fēn kāi fēng chuī rì shài dōu shì wéi le ài]
Emphasizes enduring love and commitment that will not be separated by difficulties. It expresses willingness to face hardships such as natural disasters and harsh weather because of the strength of love.