I would have to go with fictional
The writings began at least a hundred years after his alleged date of death.
I am a product of the 60 ties
and it was not a Christian concept
Hippies were more into Gaia
The Christian boys had short hair
And Christians traditionally are not in to nurturing Nature,but
Rather in exploiting it
The love and peace was preached but rarely practiced.
This is what the whole Hippy thing was about, wanting to change the ruling(Christian) attitude for a more considerate one .
They are still waging war and exploiting Nature
doing the wrong things for the supposed right reasons.