Ephesians 1:18 (NIV)
18 I pray that the eyes of your heart may be enlightened in order that you may know the hope to which he has called you, the riches of his glorious inheritance in his holy people,
Those who have their eyes opened, and have some understanding in the things of God, have need to be more and more enlightened, and to have their knowledge more clear, and distinct, and experimental. Christians should not think it enough to have warm affections, but they should labour to have clear understandings; they should be ambitious of being knowing Christians, and judicious Christians.
The popular novelist Andrew Klavan was raised in a non-practicing Jewish home. For about the first 45 years of his life, he lived as a "philosophical agnostic and a practical atheist." Klavan explains some of the steps along his journey that eventually led him to faith in Christ:
Jesus never appeared to me while I lay drunk in the gutter. And yet, looking back on my life, I see that Christ was beckoning to me at every turn. When I was a child, he was there in the kindness of a Christian babysitter and the magic of a Christmas Eve spent at her house. When I was a troubled young man contemplating suicide, he was in the voice of a Christian baseball player who gave a radio interview that inspired me to go on. And always, he was in the day-to-day miracle of my marriage, a lifelong romance that taught me the reality of love and slowly led me to contemplate the greater love that was its source and inspiration.
But perhaps most important for a novelist who insisted that ideas should make sense, Christ came to me in stories. Slowly, I came to understand that his life, words, sacrifice, and resurrection formed the hidden logic behind every novel, movie, or play that touched my deepest mind.
I was reading a story when that logic finally kicked in. I was in my forties, lying in bed with one of Patrick O'Brian's great seafaring adventure novels. One of the characters, whom I admired, said a prayer before going to sleep, and I thought to myself, Well, if he can pray, so can I. I laid the book aside and whispered a three-word prayer in gratitude for the contentment I'd found, and for the work and people I loved: "Thank you, God."
It was a small and even prideful prayer: a self-impressed intellectual's hesitant experiment with faith. God's response was an act of extravagant grace. I woke the next morning and everything had changed. There was a sudden clarity and brightness to familiar faces and objects; they were alive with meaning and with my own delight in them. I called this experience "the joy of my joy," and it came to me again whenever I prayed. Naturally I began to pray every day.
This would lead to a full acceptance of Christ as Lord. Later, Klavan was baptized and wrote a book about his spiritual journey titled The Great Good Thing: A Secular Jew Comes to Faith in Christ.
[Andrew Klavan, "How a Man of the Coasts and Cities Found Christ," Christianity Today (8-22-16)]