I believe Jesus was a human prophet, not a god, and on the off chance he survived the crucifixion, he might understandably have fled Judea as he was a convicted criminal under Roman law.
That is a rational, but unprovable theory for the resurrection story, for the meeting with some of his disciples, for his ultimate disappearance, for leaving his brother James in charge of the apostolic Jerusalem community, and for a genuine belief among the disciples that he had ascended to heaven.
The problem for people with very little education in history is they try to understand antiquity through their own 21st century filter and biases.
Near death experiences weren't understood until the 20th century. It is reasonable to think both Jesus and the disciples would interpret an NDE as miraculous.