I think the ambiguous identity of the piece causes it to be as Mel mentioned, a piece that sparks conversation, and also contemplation. It is evocative. I highly recommend walking all the way around three dimensional pieces because different angles provide fresh insights and opportunities for revelation. My first thought, especially after reading the plaque was that it looked like giant tear drops. On the other side I saw victorious arms and strength. As the sun shone through the center I thought of the hope of a new day. Later I considered it could be a perpetual flame of remembrance, or a beacon, like leaving the light on for loved ones to find their way home.
The art in public places website describes the bronze sculpture as an abstract expressionist flame. Yet all the thoughts and feelings that came to my mind and yours are equally valid. That is the glorious thing about art appreciation, each person's opinion is correct! Plus, we can all expand and grow through the conversations art inspires.