We Humans have some sort of “religious instinct”……..we “feel” as if there is something out there.
Speak for yourself, you cannot speak for humanity
Belief in God(s) was caused by this instinct. And then this belief in God evolved in to what we call religions.
Was it? Seems to me you have it wrong way round
Talking specifically about Jesus, well he was a historical person who did stuff that witnesses interpreted as miracles,
Or at least stories of witnesses
So the question is why do we have this religious instinct?
It is nor an instinct, you are indoctrinated into it.
or why did the witnesses interpreted their observations as miracles………
Or perhaps is just stories to help bind together a specific group