Faranak Amidi, World Service radio presenter and women's affairs reporter, talks to DJ Eris Drew about how rave culture triggered massive changes in each of their lives. For Faranak, it meant rebelling against the strict culture of her home country of Iran, and finding a new life elsewhere. And for Eris, it meant even more profound questions about identity. But what is it about the "motherbeat", as Eris calls it, that makes it so powerful? Producer: Beth Sagar-Fenton