Faith is the substance of hope - of things hoped for and the evidence of things not seen. So if you can hope for it and imagine it and keep imagining and hoping and seeing yourself driving a new car or seeing yourself getting that job or seeing yourself excel seeing yourself help that person - that is faith.
I do not believe that artists or actors and people should be out there like voicing their full-blown opinions on politics because let's face it at the end of the day I'm not that smart of a guy.