What does it mean to tie a long red rope to a bamboo horse?

The two poles of yin and yang are forever separated, but the innocent feelings in the heart still exist.

"The red rope of the two instruments is tied to the bamboo horse in the distance" can be understood as the two poles of yin and yang are forever separated, but the innocent feelings in the heart still exist, and the nostalgia for the past and the yearning for the pure emotions will never disappear. . This sentence contains some sad and helpless emotions, expressing the helplessness and emotion of facing love and fate in life.