What Kind of Brave?

When do we push through and when do we pull back?

Inside Mammoth Cave on the “Domes and Dripstones” Tour. Picture by Author.

The door didn’t actually slam behind me as I slowly wound my way down the metal stairs in the dim light, but it felt like it did. We’d gone in a side entrance to Mammoth Cave in Kentucky and it had a cinderblock structure with a heavy metal door built into it to keep people from …