陪我到世界终止陪我到时光尽头
[péi wŏ dào shì jiè zhōng zhĭ péi wŏ dào shí guāng jĭn tóu]
This is a pledge of eternal company, stating they'll stay by the owner's side till 'the end of the world', or till the very 'end of time'. It symbolizes loyalty or desire in friendship, love, or other relationships.