I just published a book called Fierce Joy.
It's both different and similar to what you're writing, but I think I understand what your fierce joy means. Mine comes from losing health, a job, youth, physical vitality, to incurable illness. But I feel and have felt the same welling up of joy, and the same connection to my God.
I hope you will keep including me, or somehow get your posts to me; I would like to know what happens to you and HJo and Poppy, though I'm years behind. Thank you for your joy and your thoughts and for the good work that you do,