It's true that you answered what Catholics believe. You also insisted that there is no basis for anyone to disbelieve them. It was all of that which I was answering to.
As I was saying...
That's what people always say when they have no evidence to support their own claims.
Well then, let's start with my own miracle. I dove into a lake that was too shallow, broke my neck, asked God to save me, and he did - he reversed my paralysis and healed my neck, allowing me to stand up and not drown. But I knew that I could not tell anybody, or they would take me to the hospital, do an x-ray, see my broken neck, and that I would be paralyzed for life. So I remained silent and kept my miracle in pectora.
But it is a very good place to start when discussing religion. I received a major miracle. I am a Catholic.
Obviously God was with me. This inclines me to believe that God is not opposed to my religion, which is to say, my way of looking at him and believing in him. He healed my broken neck. He healed my appendicitis without an operation, four separate times. He restored the paresis in my left hand when I severed a nerve falling down a staircase. He sustained me through two forty day complete water fasts. When I was financially collapsing due to having had my money kept from me by an employer who failed, also leaving me unemployed, two men, one a stranger, one an acquaintance, stepped forward. One wrote me a check for tens of thousands of dollars with no agreement and no repayment schedule. The other offered me a job, unsolicited, with one of the top law firms in the world. When a demon attacked me in daylight and I screamed and looked to the heavens, a bird appeared that hovered over my head, dove directly into my face and disappeared into my skull, causing my brain to explode with light and peace, and driving the demon to evaporate.
My God does these things for me and more.
When I need the proof for things, my God leads my feet, hands and eyes to those things that provide that proof. I can't show you my miracles, I can merely tell you about them. But God has left physical miracles for all to see, and each of them proves things. Lourdes is the most visible of them, with all of its facts and circumstances. To discuss religion, we have to start with my miracles or with Lourdes, as the first are facts I know directly, while the second are facts that have been extensively documented and can be verified today in real time.
To be true, a religion must be able to explain these things. Otherwise, it's useless to me.