The first sentence, "The sword is grey and the white building is frost", depicts a frosty late autumn scenery. On a bleak autumn morning, the poet went to the river to pursue his sweetheart. He seemed to see his sweetheart across the water, so he "followed it" and pursued her against the current, but the road was difficult and far away.
The poet wants to get close to his sweetheart, but he can't. He can only wander by the water, and his sweetheart is out of reach. The poet thus depicts a hazy artistic conception and obsessed mood, and creates a confused and sentimental artistic conception, which is very infectious.
Supplement:
The singing method of repeated chapters in Jian Jiazhong is a common form of expression in the Book of Songs, which is very suitable for expression and expression.