心里有片海只愿为你蓝心里有团火只愿为你燃
[xīn lĭ yŏu piàn hăi zhĭ yuàn wéi nĭ lán xīn lĭ yŏu tuán huŏ zhĭ yuàn wéi nĭ rán]
A poetic expression that metaphorically says the person's inner sea only turns blue (beautiful or special) because of the person they adore and likewise the flame within their heart only ignites or exists when they're near the subject of affection. Essentially this conveys deep, passionate devotion.