From time to time I ask myself ultimate questions. As a teenager, I had quite a strong (if unconventional) Christian faith. These days I am far less sure. To me, I cannot square up the Christian faith with a vast universe. Life on Earth seems so tiny. Christianity seems so narrow.
I also cannot square that here on Earth what we believe seems to be an accident of where I live. If I was born in Saudi Arabia I might well have ended up a devout Muslim. If I was born in Israel, I would probably be Jewish. If born in Siberia, I would probably have no faith at all!
There are some mysteries than our human brains just cannot ever understand. My philosophy is try to leave this life making it a little better than we found it and do to others as you would have them do to you. Be kind to everyone.
Everyone is different and they must be free to believe as they want.