There is no scientific evidence reincarnation works. All evidence is anecdotal. There is also no evidence Jesus existed.
So it is thus a topic beyond your purview? Correct?
I can boldly declare many thing about topics that I know nothing about ---that would make me a News Reporter.
Q How do you know who your real father is?
A. Ask your mom!
This is how knowledge is passed down and received.
It takes min. 12 years of learning the ABC's to read a great book and to be paid as a professional writer ---whatever field it is ---it was achieved via devote work & service at the feet of a GURU.
If a person shows you how to cook opossum in a vat of beer ---that cook was the GURU.