"We wanted to make a very personal album... Let's try to figure out why we wanted to be in a band, the relationships around the band, our friendships, our lovers, our family. The whole album is first journeys—first journeys geographically, spiritually, sexually. And that's hard. But we went there."
- Bono on Songs Of Innocence
The song 'Numb' is about how The Edge felt when he split up with his wife. He felt like he couldn't do anything, he was useless. He felt numb.