The phrase "the moon is now full on the sea" not only depicts the magnificent picture of the moon rising from the sea level, but more importantly, through the symbol of the moon, it conveys the poet's endless yearning for his distant lover. The rise of the moon, like the initiation of love, sprinkled silver light on the sea, like the spark ignited by love in the depths of the soul. This expression is euphemistic and lingering, so that love can be passed down forever in poetry.
This poem is from looking at the moon and thinking of one far away written by Zhang Jiuling, a poet in the Tang Dynasty. It depicts the magnificent scene of a bright moon shining in the sky. In this case, the bright moon became the poet's emotional sustenance and symbol. The poet missed his distant relatives or lovers by looking at the moon and expressed his deep love for him.