There’s a secret ancient writing stem from an unknown alien civilization, a contract between Humans and Aliens about the use of the planet Earth. The government calls it „Omega Diatribe”. This contract says Humans could only use the Earth in a limited time. Overtime is not allowed.
When our time is over they’ll come back and take us to a higher level planet. Only the open minded people could survive the transmission, 'cuz their mind can undergo the changes of the human body.