The Parents and the Young Man

In this little episode Luke promotes his first end; his first goal as a historian who carefully consulted the eyewitnesses…HIS GOAL is to reveal the IDENTITY of this Person and in doing so to get his readers to relate THEIR identities to HIS: “BECAUSE THIS PERSON IS _____, BY BELIEVING HIM, I BECOME ______.”
So let’s look at that:
#1) WHAT Child IS this?
#2) WHY is this strange incident included?
#3) HOW will it affect YOU?