What does the wind vane metaphor mean?

A weather vane is a metaphor for the development trend and direction of things. The weather vane is an asymmetric object, and its center of gravity is fixed on the vertical axis. When the wind blows, the end with great resistance to the airflow will rotate with the wind to show the wind direction.

Make sentences:

1, ideal is the weather vane in the sea, ideal is the snow lotus on the mountain, ideal is the boat in the storm, carrying me to the other side of victory.

2. The scenery on this road may be the weather vane of small commodity export, which reflects the prosperity of small commodity economy to some extent.