Laurie swings idly on his hammock and spies the March girls walking out to a hill. There, the sisters sit working—knitting, sewing, drawing, and reading. Feeling left out, Laurie asks if he may join them. They admit him under the condition that he contribute something useful, as is consistent with the work ethic of the girls’ Busy Bee Society. Laurie’s contribution is his reading of a book to the sisters. While they work, all five friends discuss their dreams. Laurie wants to become a famous musician, Jo a famous author, and Amy a famous artist. Meg wants to be rich so that she does not have to work, and Beth wants everyone to be happy and together. Upset that Laurie cannot follow his dream, Jo tells him to run away from his grandfather, who does not want him to be a musician. Sensible Meg tells Laurie to ignore Jo’s advice and to be good to both his grandfather and Mr. Brooke. Laurie decides to follow Meg’s advice.

could you help me find the main idea to this so i could give three supporting details

all five friends discuss their dreams.

The main idea of this passage is the discussion of the dreams and ambitions of Laurie and the March girls. The passage revolves around the aspirations of each character and their relationships with one another.

Three supporting details could be:
1. Laurie's dream of becoming a famous musician.
2. Jo's dream of becoming a famous author and her advice to Laurie to chase his dreams.
3. Meg's sensible advice to Laurie to be good to his grandfather and Mr. Brooke instead of running away.