A man cannot learn this by running away, by shunning things and shutting himself up in an external solitude; but he must practice a solitude of the spirit, wherever or with whomever he is. He must learn to break through things and to grasp his God in them and to form Him in himself powerfully in an essential manner. This is like someone who wants to learn to write. If he is to acquire the art, he must certainly practice it hard and long, however disagreeable and difficult this may be for him and however impossible it may seem. If he will practice it industriously and assiduously, he learns it and masters the art.

(Meister Eckhart)