In Japanese mythology, there is an episode concerning the birth
of the God of Fire. The story begins with the descent from the
sacred heavenly world of the divine couple Izanagi and Izanami.
As a result of their love-making, Izanami gave birth to the many
islands that now comprise the Japanese archipelago, as well as
rocks, winds, mountains, rivers, grasses, trees and all other
natural objects. All of this land, and indeed all of nature, including
all human beings, are considered by the Kojiki to be the offspring
of the divine couple, and hence we are all siblings. In other
words, there was an anthropomorphic belief that, coming as we
do from the same womb, we all share the same physical essence
as the rocks and rivers, winds and water.