Doubt Resulting in Faith

When people think of believers, they think of someone that has unwaivering faith. They have total convinction to their cause or religion, and do not have any doubt in their mind that what they believe is true. But is this an entirely accurate interpretation? Are we pinning the label of "faithful" on to someone who is more "radical"? When we watched the TED Talk in class about faith being the result of doubt, it really made me come to the realization that yes, most of the time, doubting something you believe in results in you being more faithful to your previous belief, or helps you to create a new faith in something that is the opposite of what you previously believed in. I do believe that doubt leads to faith. For example, I doubt whether or not I can complete certain tasks, or whether or not I am doing the best that I can do, and this leads me to have more faith in myself and what I am doing with my life. Doubt is an important part of faith, and as soon as you have an untouchable belief in something that you have never doubted, you no longer have faith.