2 Nephi 1:10
"...having power given them to do all things by faith.."
Faith fulfills. Faith is power. Faith is mental exertion. Faith is assurance. Faith means having no doubt whatsoever, faith that Christ can do it. Faith means faith in Christ that he can and will do whatsoever is expedient for the Father's will to be done and to bring glory to Him.
Faith and patience go hand-in-hand. Persistence demonstrates faith. If you continue or persist, then you are demonstrating faith, faith in Christ and His power to do.
Faith and Self-Talk
"Faith cometh by hearing" (Romans 10:17). Self-talk establishes faith because you hear yourself talking to yourself. Continued Self-Talk increases faith, if the Self-Talk is positive and righteous. Self-Talk can be destructive if the words are negative and detrimental to your wellbeing. Righteous Self-Talk is inspired of God and is the light of Christ; whereas, negative or destructive Self-Talk is prompted by Satan and his evil spirit, and it is darkness.
Self-Talk is a powerful tool to plant the seed of faith, and continued Self-Talk nourishes that seed until your faith is strong, doubting nothing. This is when you can move mountains (issues, challenges, circumstances, sickness). Self-Talk creates vision and imagination. Self-Talk connects you to the sub-conscience mind or ultimate intelligence, the power of God unto light and life.