I have been through enough that I know beyond a shadow of a doubt that God does in fact move mountains and slay giants and He also gives me the ability to do it in His power. So all around, I'm good.
Hebrews 11:6 says that without faith it's impossible to please God. I -- you -- we cannot go forward without faith -- without truly believing there is a way to conquer by a force bigger than ourselves. I know that and if you know that, you walk in power. That's it -- we walk in power.