Nice question.
Mine was this:
A few years ago,I was thinking about suicide,I was never so serious about suicide.Then I heard from my mother that my father bought a book about power of thoughts, and when I saw it on a table at home,I decided to read it.The book was "Heal Your Life" by Louise Hay.That book affected me a lot,especially in that days I was feeling like I was in a beautiful dream.I even thought that maybe I killed myself and came to the paradise

The book was basically saying that we are the creator of our world and responsible for everything that happens in our world.
I started to notice my thoughts' results in life.I was very happy and excited.Also that book was talking about spirituality too,for me that book was an introduction to reality creation and spirituality .In that days,"by chance" I saw the Matrix Movie on Tv again and watched it.I understood Matrix in a way that I had never understood it before.(Before reading that book,I was thinking that Matrix Movie is about computers(virtual reality on computers,I never thought that virtual reality on world,and never could understand what Matrix means)I heard on Tv about someone out someone who is able to twist metals by thought power on Tv.It strengthened my thoughts that this is the way to truth.