Sometimes people are so very lost in thought that normal interaction with their surroundings becomes very difficult. They become the emotion they carry with them, and they hold on to the negative stories they have about their life situation. These stories create a filter on reality that paints everything in dark shades of brown. And though these warped lenses, kindness is nearly impossible.
Though one external act of kindness can break this filter, can make them see the lightness of reality. Can make them see the beauty and abundance there is to see in every moment. Be that ray of light, clearing darkness.