"Rockabye" is about a single mother who is working hard to provide for and protect her child. The lyrics describe the struggles and sacrifices that she makes in order to give her child a better life. The mother tells her child that she will always love and protect them, and that they will have a better life than she has had. The song also speaks to the enduring bond between a mother and her child, and the love and devotion that a mother has for her child. The song's message of hope and resilience in the face of adversity is uplifting and inspiring.