Can one make up his own mind about Scientology?
One can and indeed one should. Scientology enables a person to think for himself. There is no purpose served in practicing or studying Scientology because someone else wants him to. But if a person has taken a good look at his life and has decided that he wants to make it better, the best thing is to start and find out for himself what Scientology can do for him. One should read one of the basic books by L. Ron Hubbard, such as Dianetics: The Modern Science of Mental Health, or Scientology: The Fundamentals of Thought.
What is real in Scientology for you is what you find in it that is real for you.
Taken from the book: What is Scientology?