The consonants of your full name at birth are the foundation of your Personality number, which is a little like a narrow entrance hall to the great room that is your true nature. It's the outer layer of your personality, the part you feel comfortable sharing. With time and trust, you invite others into the deeper aspects of your nature. 

Your Personality number serves as a censoring device in terms of what you send out, as well as whom and what you allow to approach. For this reason, your Personality is usually narrower and more protective in its definition than the real you. It also gives an indication of how others perceive you.