That means its most typical part is the first one- the ten degrees making its first decan, 0-10 aries. That corresponds approximately to the dates march 21-31. If your birth date is within this range, http://emorroidiragadi.com/components/charts/life-path-46.php you're likely to be a very typical aries. If you were born in early april, 1st to 10th, you're still an aries, but with character traits comparable to those of leo (the fixed fire sign). If you were born on april 11th to 19th, you have some tendencies similar to those of sagittarius (the mutable fire sign).