Portal uses colour, light, and optical effects to act as both a mirror reflecting the past and a window to the future. During the day sunlight bounces off the glass, casting a multicolored reflection on the plaza. In the evening the sculpture lights up internally, changes colour, and alternates between reflection and transparency. Paint etched onto the surface of the glass seems to stretch far beyond the threshold of the portal. Portal extends the idea of connection and allows viewers to look back on the path that they have travelled and ahead to where they are going. - Studio F Minus