My observation, with my own young is, being heathen emerges so naturally, no indoctrination is needed. at 4 my son was in the garden with me...observing bugs and the like, he said, out of the blue "the earth is my mother"....and i, who did, give birth to this child was for an instant, offended...but i checked that...realizing , he was having a personal insight, here. It was his to have, and only a controlling freak would deny it. Ancient people's had, an advantage over US. They had a full compliment of archetypes they needed, relative to their environment. If you take this away from people, there is a psychological crisis. Their relationship with nature becomes profoundly detached. This is a vital aspect of personal identity. Values become unstable, like an ship with no anchor. Mass vulnerability to exploitation.