Scientology, the subject of knowing how to know, has been developed for various applications in the field of human experience.
Specifically, the use of certain Scientology processes obtains, when correctly used, without further evaluation for, or training of the person, the knowledge that he is not a body, that he is a creative energy-production unit, and demonstrates to him his purposes and abilities.
This energy-space production unit we call a thetan, that being a coined word taken from a mathematical symbol, the Greek letter theta. This is the person. One does not send ones thetan anywhere. One goes as a thetan, a spiritual being.