How we se ourselves has a massive impact on our lives, and what we attract to it. Like attracts like, therefore positive thoughts attract positive experiences and people. As do negative ones.
It is in the mind which contains our thoughts and awareness which radiates our thoughts to others attracting likeness. Your thoughts, especially of yourself, affect your energy either attracting or repulsing positive or negative experiences and people.
Your thoughts can either serve you well, enhancing your life, or they can detract and cause negative experiences.
It is through visualization which we practice, we learn and train ourselves to bring positive energy into the mind and awareness.
Regularly practicing visualization of positive images of the self can dramatically affect your life for the better.