Blue Church gravestones

It's an Eastern Ontario landmark, midway between Prescott and Maitland overlooking the St. Lawrence River.

The prominent column memorial is to Barbara Heck (1734-1804) who " brought into existance American and Canadian Methodism".

What caught my eye at the Blue Church was the symbolism on the gravestones, especially as I had recently listened to Donna Walcovy speak on that topic.