Post Malone oughta know-- if ya dance with the devil, you're going to get cursed, and this extremely scary video describes why his life seems like "Final Destination" lately.

Months prior to Post's private jet almost crashed, his Rolls-Royce got totaled and equipped crooks targeted him ... the rap artist was hanging with "Ghost Experiences" star Zak Bagans and something called the world's most haunted item. What could fail, best?

He most likely definitely shoulda stayed out the freakin' room, but didn't ... when Zak touched the box, Post touched Zak's shoulder. Bagans says that's enough to trigger a curse, and it describes why Post shouted and pulled Zak out of the room. White people ...

Anyway, Zak thinks it's absolutely exactly what's behind Post's string of death-defying events-- the emergency landing, the frightening auto accident and the house invasion.

After downing some beers, Zak says he removed the protective case and for the first time ever, felt compelled to touch it. He states Post was freaked out-- you can see it in the video-- and did NOT want any part of package.

Or, employ an exorcist. Once again, exactly what could go wrong?

Post informed us he thinks God might hate him, but our suggestions is to lay off the dybbuk, bro.

Zak informs us the close encounter decreased in June at his Haunted Museum. The things is called the dybbuk box. Dybbuk is Yiddish for "malicious spirit" and package inspired the horror flick, "The Possession." Sooo ... completely cool.