I finally hit one pure on a day when I wasn't playing that well (I carded a quadruple bogey on a par 5 on the front). It was the 30th of 36 holes on the day and I hit it perfectly to a spot where I knew I needed to be.
If you it a yellow ball, you can see the glow coming out of the hole from about 15 fee away. It's glorious. It was like the the glow from the Pulp Fiction briefcase. "Vincent. Are we happy?" "Yeah, we happy."