如果可以你就是阳光
[rú guŏ kĕ yĭ nĭ jiù shì yáng guāng]
If it could be, you would be sunshine: The owner wants someone (usually loved one) to shine into his/her life just like warm and indispensable sunshine. It's used to express how much they desire the presence of a particular person in their world in an unconditional way.