According to the article, Self-awareness, self-regulation, and self-transcendence (S-ART): a framework for understanding the neurobiological mechanisms of mindfulness, self awareness regulates the mindfulness through systematic mental training of knowing one's self. While self-regulation focuses on one being mindful of their own behavior. Self-transcendence focuses on the upliftment of one's abilities and needs that will increase their own prosocial characteristics about themselves (Vago, D. R., & Silbersweig, D. A. (2012)
Knowing how to control your own thoughts and behavior can be very reinforcing in your life. It prevents negative traits and factors that could possibly impact your own health and mental state. For example, if you speak into existence that you will have a great day, then you have manifested what you know you will have although you don't know. However, if your more "glum" about what your day may consist of then you will manifest that outcome in a negative way. It's the action of what the saying "We are What we Speak" plays in proportion.