"For the current of our spiritual life creeds, rituals and channels that may thwart or help, according to their fixity or openness. When a symbol or spiritual idea becomes rigidly elaborate in its construction, it supplants the idea which it should support."

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When I get an idea I start at once building it up in my imagination. I change the construction, make improvements and operate the device in my mind. It is absolutely immaterial to me whether I run my turbine in my thought or test it in my shop. I even note if it is out of balance.

— Nikola Tesla