A person may have a bent (inclination) towards God or may simply feel comfortable in a particular religious atmosphere, but again -- there are various sects and divisions as well as religious beliefs. And that is an interesting point you make about research. I know there are many religions in this world. The early disciples and apostles went preaching about Jesus.
Acts 19: "About that time there arose a great disturbance about the Way. It began with a silversmith named Demetrius who made silver shrines of Artemis, bringing much business to the craftsmen.
25 Demetrius assembled the craftsmen, along with the workmen in related trades. “Men,” he said, “you know that this business is our source of prosperity.
26 And you can see and hear that not only in Ephesus, but in nearly the whole province of Asia, Paul has persuaded a great number of people to turn away.
He says that man-made gods are no gods at all."