Electromagnetic fields are not of the mind... Creation may be spiritual in origin, but that doesn't mean that everything created is spiritual. How can I explain such things to you? Let us accept the world is a mystery. Nature is neither solely material nor entirely spiritual. Man, too, is more than flesh and blood; otherwise, no religions would have been possible. Behind each cause is still another cause; the end or the beginning of all causes has yet to be found. Yet, only one thing must be remembered: there is no effect without a cause, and there is no lawlessness in creation.

p. 59 - Einstein and the Poet (1983)