I love your story! Volunteering is such a beautiful & meaningful experience, I think more people should embrace it.
My experience was a trip I took to Nepal, Tibet, and Bhutan. I was 16 at the time questioning my religion (I grew up Catholic & went to a private Catholic school that went to church every Friday). Our tour guide took us to a museum where there was a picture of Buddha & an unknown man who they believe was Jesus. It was at that moment & during the entire trip that I started to realize that I can practice my religion any way I want because at the end of the day, fundamentally, religion is about being a good person. I no longer go to church and use meditation as a form of prayer :)