爱他如天蓝念她如深海
[ài tā rú tiān lán niàn tā rú shēn hăi]
An expression of profound feelings toward loved ones – loving someone as purely and boundlessly as the blue sky ('love him like the clear sky'), missing someone as deeply and silently as the ocean depths ('thinking of her like the deep sea'). It indicates deep, unconditional love for significant others in one's life.