I think prayer offends some people because it's self-centered.

Why not pray that ALL illness be eradicated from the Earth?

I think no one prays for that because they know it isn't going to happen. So they pray for specific people with specific illnesses, because there's a chance (thanks to modern medical science, of course) that that one person will improve.

Having said that, if anyone knows of the absolute, true, real properties of the Higher Power of the Universe, please let me know (even on a horror board), because I've been searching for this entity for 50 years. I must be going about it the wrong way.