Transformation

I find this very interesting when looking up at the ceiling light above my cubical at work. The light's shaping transformations of heart shape in three different categories. The bottom row shows the heart's not grown in dark at all. The middle row shows the heart's grown completely and been able to maitain its color. The top row shows the heart's grown completely but then turned black at the end. Can you explain the meaning of it? And which row represent you?

Done