Reflection.

Physically,  Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. The law of reflection says that for specular reflection the angle at which the wave is incident on the surface equals the angle at which it is reflected.  Mirrors exhibit specular reflection.

Reflection :  A thought occurring in consideration or meditation.

Marmalade - Reflections of my life (1970, live )

The changing of sunlight to moonlight Reflections of my life, oh, how they fill my eyes The greetings of people in trouble Reflections of my life, oh, how they fill my mind All my sorrows, sad tomorrows Take me back to my own home All my cryings (all my cryings), feel i'm dying, dying Take me back to my own home (oh i'm going home) I'm changing, arranging, I'm changing I'm changing everything, ah, everything around me The world is a bad place, a bad place A terrible place to live, ah, but I don't want to die All my sorrows, sad tomorrows Take me back to my own home All my cryings (all my cryings), feel i'm dying, dying Take me back to my own home (oh i'm going home)