The destiny of a human being is fixed or variable?

The destiny of a human being is fixed or variable. Can the control of destiny be exercised by one! Is it possible for a normal human being to take complete control of his destiny? Is it possible to manifest destiny?

Yes! It is possible to manifest destiny if you are able to understand the crux of life. The destiny of every human being rests with one. It is like a chest of gold the key of which is not immediately made available to us. Only having passed certain standards in life would the key become available to us?