There have been screenshots posted publicly before of the Sacred Rituals section to show people who don't have access what's available. That's not a problem as it's an advertisement. However, you absolutely cannot discuss the contents of any ritual you purchase with anyone aside from the priesthood who are there to assist with the application of the material. It doesn't matter if they are a known donor or swear up and down that they have purchased the same ritual; the contents of the ritual cannot be discussed with others. If they want to know so badly, direct them to TG Alexandros Iowno or the priesthood.
The only exception is for married couples, married being the operative part. Don't share with the guy/girl you've been with for 2 months. Even then, I think you would need the blessing of the High Priest.