So you have questions about what people are doing with Dianetics and Scientology? This article by L. Ron Hubbard should give you some answers:
"For thousands of years men have sought the state of complete spiritual freedom from the endless cycle of birth and death and have sought personal immortality containing full awareness, memory and ability as a spirit independent of the flesh.
The dream of this in Buddha’s time was called “Bodhi,” being the name of the tree under which he attained such a state.
But due to the unknown presence of the reactive mind and its effect upon the spirit as well as the body, such periods of freedom were difficult to attain and were, as we have found, temporary..."
The rest is at www.whatisscientology.org Part 3 Chapter 15.