This is what "esoteric" as in "esoteric religion" means - although it's necessarily not intentionally hidden or shameful to explain, it can just be very hard to

This is what "esoteric" as in "esoteric religion" means - although it's necessarily not intentionally hidden or shameful to explain, it can just be very hard to explain. Like, driving a car is an esoteric modern ritual, because you can't learn how to do it by reading a book about it. You have to actually practice it or have someone show it to you.