In numerology, a person's day of birth is more than a number stamped on a piece of paper. Your birth day number has a permanent influence on your life. Although you grow older and may change your name, your birth number always remains constant. Your birth number is the first number you're aware of. You may forget your age or a special anniversary, but you never forget your birth day number. You may also use your birth day to identify with other people. There have probably been times in your life when you've met people with the same day of birth you have. Your immediate reaction is, "yeah, that's my birthday, too!" You've formed an immediate bond with that person, even if your birth month is different from the other person's, even if your ages are miles apart, even if you have nothing else in common. When using your birth day to begin learning about yourself, keep in mind that it's a great thumbnail sketch, but not the path in your numerology assessment. Many other major numbers -- such as your name at birth, your lifepath number, destiny and soul urge -- can influence how closely your birth day number affects your life. These combinations of numbers are the reason you are unique from someone else who might share your same birth day.