Oh, that's very interesting.
The religious people of the time may also have used this place for the young people who were entering puberty and considered the courtship of the respective girls and boys to be normal, since their senses were almost exclusively preoccupied with one thing anyway: How to win over the one they had in mind or the one they had set their sights on.
... Perhaps as a guide, perhaps as an inspiration, perhaps even as a shared experience of normal sexuality, these people carved into their temples because it didn't make them uncomfortable.

Similar to how being naked didn't make remote villagers of my parents' and grandparents' generation uncomfortable. They were all very strict Christians, but they didn't have a problem with nudity. We here in Europe also see ourselves as Western, but in some areas we have a nudist culture on the beach. Nudity and nakedness can be very different, can't they? Just like porn and free body culture are fundamentally different things.

Now, thanks for that inspirational posting.