This isn’t one of those, “They didn’t say ‘Merry Christmas’ to me!” complaints. 

It’s a thought from Eugene Peterson’s book, A Long Obedience in the Same Direction:

What is hazardous in my life is my work as a Christian. Every day I put faith on the line. I have never seen God. In a world where nearly everything can be weighed, explained, quantified, subjected to psychological analysis and scientific control, I persist in making the center of my life a God whom no eye hath seen, nor ear heard, whose will no one can probe. That’s a risk.

Go. Live dangerously.