“Into their sacred groves – natural academies built by the hand of the Invisible Architect – the initiates assembled at the still hour of midnight to learn about what man once was and what he will be.
They needed no artificial illumination, nor life-drawing gas, to light up their temples, for the chaste goddess of night beamed her most silvery rays on their oak-crowned heads; and their white-robed sacred bards knew how to converse with the solitary queen of the starry vault.
On the dead soil of the long by-gone past stand their sacred oaks, now dried up and stripped of their spiritual meaning by the venomous breath of materialism.
But for the student of occult learning, their vegetation is still as verdant and luxuriant, and as full of deep and sacred truths, as at that hour when the arch-druid performed his magical cures, and waving the branch of mistletoe, severed with his golden sickle the green bough from its mother oak-tree.”
H. P. Blavatsky
The Mark Of God: Understanding Your "I AM Presence" 