Similar to cresun's interpretation, I feel the meaning of this song revolves around a guardian angel, a spiritual guide, a higher being leading them, however you'd like to think of it. Said being inspires and guides the person, a voice in their head if you will. 'Half a world away' implies this being is of a higher realm, another dimension perhaps. Their influence helps drive the individual and inspires them to do good. This influence could also be interpreted as God leading said person, or, if I may, a more intelligent being telepathically communicating with the person and guiding them to greatness.
Similar to cresun's interpretation, I feel the meaning of this song revolves around a guardian angel, a spiritual guide, a higher being leading them, however you'd like to think of it. Said being inspires and guides the person, a voice in their head if you will. 'Half a world away' implies this being is of a higher realm, another dimension perhaps. Their influence helps drive the individual and inspires them to do good. This influence could also be interpreted as God leading said person, or, if I may, a more intelligent being telepathically communicating with the person and guiding them to greatness.