The meadow of Muhlenbergia capillaris grasses shine brightly.

When people stand still near them, they shine more brightly and produce a tone. The light then radiates out, spreading to nearby Muhlenbergia capillaris as they resonate with the same tone.

If a wave of light comes from the other side, it signifies the presence of people there. People gain a heightened sense of awareness of the existence of other people in the same space.