“Nakisawame-no-Mikoto’s themes are peace, honor, history, death and forgiveness. Her symbols are trees. The Goddess of mourning in Japan, Nakisawame-no-Mikoto weeps with the memories of the many innocent people who have died in wars throughout the ages. She comes into our hearts today in the hope that we will learn form our collective past.
According to tradition, Nakisawame-no-Mikoto lives in the base of trees, her roots holding firm to the earth and its history. This also speaks strongly of our family trees and the importance of kinship.
On August 6, 1945, the atom bomb landed in Hiroshima, resulting in the loss of thousands of lives and many years of radiation sickness. In the spirit of Nakisawame-no-Mikoto, today acts as a memorial to the people who died and a celebration of the peace that has been maintained. Traditionally, tiny paper lanterns are floated on flowing waters as wishes for the dead.
So, light a candle today for someone you know who died needlessly, or fighting a just cause. The flame of the candle reperesnts the Goddess and the memory of that person whose efforts light the way for a better future.
To encourage peace between yourself and someone else, plant a token that represents your desire beneath a tree so that this Goddess can begin helping you achieve harmony.”
(Patricia Telesco, “365 Goddess: a daily guide to the magic and inspiration of the goddess”.)
“Naki-sawa-me-no-kami is the Japanese Goddess of mourning. She was born from the tears of Izanagi, weeping over the loss of his wife, Izanami. Naki-sawa-me lives in the base of the trees on the foothills of the mountain Amanokaguyama. Her name, which means ‘weeping marsh woman Goddess,’ is also seen as Naki-sawa-me-no-mikoto, Naki-saha-me-no-kami, and Naki-saha-no-me-no-mikoto.” 
Sabrina. Goddess A Day, “Naki-sawa-me-no-kami“.
Crystalinks.com, “Japanese Creational Myths“.
Encyclopedia of Shinto, “Kami in Classic Texts“.
Encyclopedia of Shinto, “Nakisawame“.