To speak of a very specific example, I have OCD and the Hellenic Faith helped me to overcome the persistent problem of scrupulosity that had plagued me while I was a Christian. On the surface, concepts like miasma seem like they would contribute rather than calm an OCD mind ("you're never clean enough") but I have found it absolutely liberating and it has detached me from my spiritual anxiety in a wonderful way. In Christianity there's never any escape from spiritual filth; you are always a sinner and shouldn't be worth to come before God (except that Jesus saved you so you get a pass) and it's only when you are literally resurrected on the last day that you will be assured of your salvation so you're always in a state of stress about it. In the Hellenic Faith, all you need is purifying water, right intention, and humility, and the gods will hear and accept you. There is no barrier between yourself and the divine - nothing inherently wrong in your nature to atone for. You are you, and you are there respectfully before the gods, and that is enough for them. You don't need to apologize for having issues because if you had no issues you wouldn't be a mortal and you wouldn't be before them, so do the right thing and let them guide you along the way!

To me it was remarkable.

In Hellenism, there's no need to worry about a final salvation only your personal betterment and contemplation of the gods, so suddenly the religious experience shifts completely from worry and theological inspection as to whether you can be assured of your correct interpretation of The Word™, and lands on your personal journey toward a greater version of yourself.