This transformation will cause us to suddenly disappear to the 4D inhabitants not transformed. Once transformed into glorified bodies and behavior mechanisms (souls) we will THEN be caught up to join the dead in Christ rising into the clouds to meet the Lord in the air. The transformation literally adds coordinate(s) to our physical existence making us hyper-dimensional beings.
I believe the great lie is related to our sudden disappearance. L.A. Marzulli believes the great lie will be ushered in by the 'supposed' aliens who come down when we go up. They are actually demonic sourced not other solar system sourced. Christians maybe gathered into internment camops when the Rapture happens, but regardless, the world is going to witness a supernatural event for which a great lie must be told by the evil one who is not longer restrained (2 Thess 2 6-12).
There is a huge clue in 2 Thess 2:3 where Paul used a Greek word 'apostasia' to denote the departure. The word is made of two Greek words: apos and histemi; away from and to stand, yielding to stand away from, as in literally transformed to stand away from the 4D realm into hyper dimensional realm.
Interesting.