I finished Agatha All Along with friends, and here's my long-winded thoughts on it: https://www.tumblr.com/thatonebirdwrites/771518720031997952/jen?source=share
I think this quote sums it up well:
Danielle Dulsky wrote in her The Holy Wild Grimoire, "The Earth is a cemetery for dead stars, after all. We all rose from a stellar boneyard. To be heathen is to remember why we were born into a feeling creaturely body. We were born to sip the nectars of sweet joy and bitter grief. We were born to be living poetry, and we were born to behold a story far longer and larger than our own."
I thought about copy/pasting the entire essay into a post, but it is very long. I may still do so if people ask, and if so, I'll add each section of the post to this thread.