The denomination of which I was a part has a particular love for the ideal of a unified Church. I thought it ironic that someone thought it a good idea to found a new Christian denomination in order to contribute to the unity of the Church. And then I kept thinking. If the Church is already splintered into thousands of factions, then how could I best contribute to making those many factions closer to one. Would it make sense to create a new faction, hoping that everyone else would join me? But I can only control my own actions, and furthermore the creation of a new faction increases the disunity of the Church. That would be the wrong direction. However, if I were to join the largest denomination, then my joining would make that fraction of the Church larger, and therefore closer to one. The largest Christian denomination is the Catholic Church.
I don't know when I began thinking along these lines. I believe it was in my early teenage years, but it might have been earlier than that. I had, as yet, no idea what the Catholic Church actually believes and teaches. I did know that until the "reformation" all of Europe was Catholic, and that the Catholic Church was still the largest of the Christian Churches. I also had no notion yet of the Catholic Church being the true Church, although realizing that it was the oldest, I was 90% of the way there. This was the first time I was explicitly attracted to the Catholic Church.