They are one of those places that put your spirits in peace.
I know a sanctuary in Argentine Patagonia with that mystical touch, totally isolated, on top of a hill, but it has no garden. They call it La Stupa and it would have been very nice to create a natural garden around it.
But it is seen that it does not agree with the ideology and the mystique of the monument.
I'm not really understanding how a garden could ever considered to be in conflict with a spiritual monument....