The next part of my answer is this:
The major services of a Scientology Church are called "Auditing" and "Training".
Scientology Auditing is one-on-one spiritual counselling. It consists of very specific and exact procedures aimed at helping an individual attain higher spiritual levels. The goal of auditing is to restore individuality and ability. This is accomplished by (1) helping the individual rid himself of any disabilities and (2) increasing individual abilities. Obviously, both are necessary for an individual to achieve full potential.
It is difficult to compare it to practices in other religions, because it is not like anything I've ever come across anywhere else. There are hundreds of different procedures (called "processes") arranged in a very specific order. For example, one set of processes is aimed at achieving "The ability to communicate freely with anyone on any subject" another set achieve "Freedom from the hostilities and sufferings of life." One of the major goals is called the "State of Clear" which is a person who is self-determined and no longer the effect of his past and the traumas of his past.
Here is a video that gives a basic introduction to Scientology Auditing: