Meaning

• 
  What you are destined to be - i.e. Your life's purpose.
  (Not necessarily what you already are - Example:
  You are a writer but are destined to be a musician.)
  The opportunities coming your way.
  Kind of people you should mingle with, etc..

[More Analysis]

Click on the calculator to find out your Destiny Number

How to Calculate ...

The Destiny Number is derived from the person's FULL NAME. The following chart will help us convert letters to numbers.

For e.g., ALEXANDER GRAHAM BELL translates to 1+3+5+6+1+5+4+5+9, 7+9+1+8+1+4 and 2+5+3+3 which separately adds up to 39, 30  & 13, which reduces to 3, 3 & 4 which adds up to 10, which reduces to 1, hence Alexander Graham Bell's Destiny Number was "1".

A Final Note

There are 11 numbers used in constructing Numerology charts. These numbers are: 1 through 9, 11 & 22. 11 and 22 are Master Numbers, not reduced to single digits 2 & 4 respectively. 11 & 22 are extraordinary numbers that suggest a potential for higher degree of learning and/or achievement, very often in a more stressful environment.
[As a final note: It's always better if nicknames (like Tom instead of Thomas) & changed names (including those due to marriage) are not used to calculate the Destiny Number.]