Personal evidence is evidence that no one except the person having the experience has access to.
For example, the priest saw God, and felt God's presence, in the hospital room where the father reached for his son. But consider an atheist nurse passing through. She probably did not see God or feel God's presence in that room. The priest's evidence was personal, not objective. Some students came up with alternative explanations for religious experience Imagine someone whose parents took her to church when she was a little kid, but who has since left the church.