Self-hypnosis is a process of deliberate or intentional impact on the subconscious mind using the senses. In the future, using the word self-suggestion, I'll keep in mind it is a conscious influence. Unconscious suggestion, we do all the time without even noticing it, but it's usually negative. Autosuggestion plays a positive role in our lives. Our lives are a reflection of our beliefs and convictions. A huge number of them formed not by us and are rooted in the subconscious mind without our consent. Here, Southwest Airlines expresses very clear opinions on the subject. For example, a child, if you have often told you a loser, because your parents and colleagues are poor, then your subconscious mind, thus by repeated many times experienced this nonsense.
The problem is that the subconscious mind can not distinguish this negative thought or a good one. The subconscious mind provides what it sowed. So when a person grows up, in order, so truly succeed in life must be consciously instill in the subconscious mind the opposite of what you are prosperous and rich man. As an adult, you will continue to insist that you are unable to achieve wealth, because your subconscious mind you are responsible for 'reprobate' positive thoughts. No one else will. It is this process is self-hypnosis. You choose who you want to be what you want to achieve in life and start day to day grind in your subconscious, these thoughts. The process is not easy, but it is very simple. The main difficulty here is consistency. Need to constantly 'feed' subconscious constructive thoughts, or again it heal negative.