How Come Someone Is Reincarnated into a Calabash Baby?

I've read a lot about reincarnation, but how can anyone be reincarnated into a Calabash Baby? Wait, it doesn't seem that simple. The little butterfly was "resurrected from the dead" despite being brutally murdered? Where did this self-proclaimed snake spirit mother come from? Except for the Calabash Baby's abilities that have not changed, everything else looks like someone is planning it... In my last life, I had to muddle along for half of my life. Since I have such an interesting reincarnation in this life, I need to plan my life! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.