That was an intimidating start, wasn't it?
I've been accused of being crazy, and often admitted to it. But I don't often admit to the specifics. I swear, on my mother's grave, that when conditions are just right you can hear the northern lights.
You have to be in a place that is completely quiet. You know how you can tell if a place is completely quiet? Stand silently for a minute or two. If you realize that you can hear the blood flowing in your ears it is quiet enough.