on

“… For this is the great secret, which was known to all educated men in our day: that by what men think, we create the world around us, daily new.

And now the priests, thinking that this infringed upon the power of their God, who created the world once and for all to be unchanging, have closed those doors (which were never doors, except in the minds of men),…”

Marion Zimmer Bradley “The Mists Of Avalon”