I use myself as the evidence for that statement. I have tried for years to find reasons to convince myself that God exists and have made absolutely no progress. At this point I’ve completely given up on it all and concluded that it’s not actually possible. Even if I heard God’s booming voice from the sky, my mind would easily find some way to dismiss it just like I dismiss great many things. It is actually impossible for me to imagine a scenario involving convincing evidence for supernatural things. It doesn’t even need to be supernatural things, I don’t even have faith that the sun will rise in the morning but I simply don’t get surprised when it does.
The closest I’ve ever gotten to faith is neutral agnosticism. If somehow God does exist, what is the reason for this? Why does it have to be so hard to believe even though I want to believe? I’ve read the Bible but I can’t remember a passage relating to this. It says “Ask, and it will be given to you; seek, and you will find; knock, and it will be opened to you.” (Matthew 7:7)
How many more years?
Somebody once said that he is the man for people who want to believe in God but keep finding their intellect getting in the way.
He was a brilliant scholar in his own right (if you are a student of English literature, you can do FAR worse than read his contribution to the Oxford History of English Lit, the volume on the 16th century, or the eye-opening The Discarded Image). But in apologetics he brings a fierce intelligence and persuasive reasoning combined with gentle, conversational English to the table.
And he was an atheist until he was in his twenties . . . and said of his conversion that he was "the most dejected and reluctant convert in all England."
My favorite of his is still The Great Divorce.
So, have you tried asking (prayer)? You might want to try something simple, "Dear God, please reveal yourself to me and open my mind and heart to You."
As an experiment, try that every day for a month; and remember, you don't need very much faith. Christ also said that if we had the faith of a mustard seed we could move mountains.
You can't get God. You can only let God get you.