An interesting, and very scholarly, read. Basically, as I understood it, Rupke's point is that religion began (thousands of years ago) as a home or family affair, with daily practices or “rituals” for personal communication with deities or divine forces. From there, he traces how Roman religion developed–temples grew, then priests to tend the temples, then writing about religion, then national identification with religion. The narrative is compelling, though admittedly very dense, and perhaps with some translation oddities.
Check out a more detailed review on my blog~
https://ellehartford.com/book-review-pantheon/