What does Leviticus 12:8 mean?

If she can’t afford a lamb, she can bring two doves or two young pigeons—one for a burnt offering and one for a sin offering. The priest will make things right for her, and she’ll be clean. Leviticus 12:8 - Modern Text Bible

(There’s a provision for those who are poor, showing that God’s law makes room for everyone to participate, regardless of their means.)