Firstly an apology - I haven't yet read "Collision" - I fully intend to. I have read other accounts of CS life - for example Barbara Wilson's "Blue Windows", and enjoyed them immensely.
I was raised in Christian Science and fully believed its teachings for many years. As a "good kid" I accepted my parents authority, including their beliefs that CS encapsulated the ultimate truth. During all my years of contact with CS church members, however, I never witnessed a single healing which would not have occurred via the body's own regenerative processes. I did, however, witness many failures. In several cases, my parents attempted to heal themselves, with the help of a CS practitioner, only to be forced to have medical attention when it failed.
I eventually drifted away from CS in the sense that I did not give it any attention. I always thought, however, that it was still the truth and I would return to it one day. At some point (in my early forties) I decided to investigate the issue and decide once and for all about the truth. My investigation involved reading the bible in as unbiased a frame of mind as I could. It became clear to me that the CS interpretation of the bible was completely false. Also an investigation into the early history of CS turned up some unwelcome results.
As a result of this, I came into mainstream Christianity. I suppose that, growing up in a Western culture, the Jesus story is so deeply ingrained that it's difficult not to be attracted to it. Try as I might, however, I could never shake off the niggling doubts that it may all be a fabrication. After about 5 years in the methodist church, I eventually quit religious belief systems for good.
I now try to steer clear of believing things simply because I would like them to be true. I believe something if there is good evidence for it and/or if the source of data is trusted.
I feel sorry for the people still wasting their lives in service to the CS church.
Anyway, sorry to woffle on a bit. I look forward to reading the book soon.