Look at the answer in chronological order.

1. This paper describes that Min Huifen, an erhu performance artist, insists on playing for the common people, which reflects her unremitting pursuit of erhu performance art.

2.① Min Huifen went to gaoyou lake Aquatic Primary School in northern Jiangsu to play for fishermen's children;

② Min Huifen went to Gansu Nickel Mine to perform for miners in the open air.

(3) Min Huifen went to poor Dingxi early in the morning to find a fellow villager to play.

3. The profile describes Min Huifen's exquisite performance skills, and also shows Min Huifen's approachability and her close relationship with ordinary people.

4. "Respect and piety" is a description of Min Huifen's demeanor, and "Being at the bow is like being in the Golden Hall of Vienna" is a metaphor. It shows Min Huifen's infinite love and respect for people and art.

5. With the metaphor of "Riling", it vividly shows Min Huifen's endless "life-and-death climbing" to the erhu performance art, and expresses the author's high praise and incomparable reverence for Min Huifen.