一支笔写下你幸福的一生一行字记录你快乐的一生
[yī zhī bĭ xiĕ xià nĭ xìng fú de yī shēng yī xíng zì jì lù nĭ kuài lè de yī shēng]
With a pen writing down your happy lifetime; with lines recording the joy of your lifetime. It metaphorically refers to wishing to document another person's entire life filled with bliss through the power of words.