"Brother" is a poignant reflection on family separation and the longing for connection. Written by guitarist and vocalist Jerry Cantrell for his younger brother, David, the song explores the distance that grew between them after their parents' divorce. Cantrell described it as an attempt to "build a bridge" after years of being apart. It's a deeply personal story of sibling relationships, particularly in a fractured family, and the regret and desire to reconnect that can surface later in life. The song features Cantrell on lead vocals, with backing vocals by Ann Wilson of Heart, and appeared on the band's 1992 acoustic EP Sap. Playing it can feel like reaching out across a divide, seeking understanding and reconciliation.