Qi: refers to the integration of all things in heaven and earth. Double pill: refers to the reflection of the sun and the moon in the sea. The general idea of these two sentences is: everything in the world is like floating in the sea; The reflection of the sun and the moon in the sea, like a pair of projectiles, has been immersed in water since ancient times.
The first sentence describes the vastness of the sea from the sky, and the second sentence describes the eternity of the sea from time. Gankun is big and all-encompassing, but it still floats in the sea; The sun and the moon shine on everything, but they are like two small balls immersed in the sea. In two sentences, the eternal infinity and vastness of the sea are written from the perspective of time and space and contrast, and the artistic conception of the poem is broad and magnificent.