Belief can give motivation and with that comes visualization because you can see it, feel it, taste it and that is when you begin to whole heartedly believe it. That's why it's so vital to be able to become emotionally strong and have certain aspects of your foundation in place otherwise you may not be able to find the belief being caught up with so many internal and external distractions. Also the process, upon beginning the formation of the that belief in yourself, can start to become easier in the self awareness of who you are. What self belief also does is create a form of self love, because in turn when we believe then there is subsequently less self doubt.