Affirmations are simply statements or sentences that we say or think repeatedly. They can be positive or negative and affect both your conscious and subconscious mind. What is so powerful about affirmations is that by repeating them daily, you can actually transform your life. What you think or say over and over can sink into your subconscious mind and, believe it or not, become part of your reality. This can be a little tricky to grasp at first – but there is science behind it.