Scientology teaches that mankind is an immortal being (called a Thetan) not originally from this planet, and that man is trapped by matter, energy, space, and time (MEST).
Usayansi inafundisha kuwa mwanadamu ni kiumbe kisichokufa (kiitwacho Thetan) na asili yake si kutoka sayari hii, na kwamba binadamu amenaswa na jambo, nishati, nafasi, na wakati (mest).