Each of the lamps on the water’s surface floats autonomously. When a person pushes or stands still near a lamp, or when the wind blows a lamp, it shines brightly and emits a sound. The light of that lamp is transmitted to nearby lamps one by one, as the sound is continuously emitted. The transmitted light always travels through each of the lamps only once, shining brightly, as it propagates through all of the lamps. People become aware of the presence of others in the same space.

The light is transmitted in such a way that the total distance it travels as short as possible. In other words, the light travels in a single stroke along the shortest route through all of the lamps only once. 

The resonating lamps on the water’s surface change location moment by moment.

Because the total distance covered by the propagating light is the shortest possible, even if the same lamp starts to shine, the path of light changes every moment.

When the wind is not blowing and people are not nearby, the lamps begin to blink slowly.

When the transmitted light meets with a light originating from a different starting point, the lamp where the two lights meet shines brightly for longer. People will surely feel the presence of others in the same space. 

*The lamps are made of Murano glass (Venetian glass).