"Ah!" He seemed to be pleased. "Is it the Great Silence you want?"
"Yes, the Great Silence."
"Well, where do you think it's to be found?" he asked.
"Deep within me, I suppose. If only I could go deep within, I'm sure I'd escape the noise at last. But it's hard. Will you help me?" I knew he would. I could feel his concern, and his spirit was so silent.
"Well, I've been there," he answered. "I spent years going in. I did taste the silence there. But one day, Jesus came -- maybe it was my imagination -- and said to me simply, 'Come, follow me.' I went out, and I've never gone back."
I was stunned. "But the silence ..."
"I've found the Great Silence, and I've come to see that the noise was all inside.
~ from TALES OF A MAGIC MONASTERY by Theophane the Monk
The acquirement of spiritual wisdom does not necessarily prevent us from making worldly mistakes; but because it develops the qualities that will prevent them, and because it takes to heart the lessons of experience, humbly and receptively, it does reduce the frequency of those mistakes.