愿削足为鱼愿做你的海
[yuàn xuē zú wéi yú yuàn zuò nĭ de hăi]
Translating this would give 'Willing to become a fish and transform myself into your sea'. This expresses willingness and unconditional devotion, indicating that the user is so in love that they’re willing to change anything just to match their loved one, even something impossible like becoming a part of nature itself.