With sunrise, the ovoids begin to reflect the world around them. When pushed down by a person or blown by the wind, the ovoids fall back and then rise releasing a resonating tone. The ovoids around it also respond one after another, continuing to resonate with the same tone.

As the sun sets, the ovoids shine by themselves. When an ovoid is pushed by a person or blown by the wind it falls down and then rises, a sound resonates out, and it emits a light color specific to the sound. The ovoids around it also respond one after another, making the same tone sound, and emitting the same light color that continues to resonate out. And the surrounding Resonating Trees also respond and change continuously.

The ovoids begin to flicker slowly when the wind is quiet and people do not push them.
Because the ovoid colors are produced by light, it is possible for them to change into liquified light colors.