Destiny or Deeds?

The question of which is playing a major part in our lives deed or destiny is becoming a riddle with the passing of time. The more I think about it, trying to find which one of it drives our life, the more blurry the path to my answer becomes living me still with a question mark. The idea of destiny is related to your faith in a supreme power that controls the way things are to be done. Deeds are made by our own will.
Destiny concept can be applied in so many examples like the disaster happened in Japan recently so many people died and so many lost their life. One can only attribute those deaths to Mother Nature. Someone walking down on the footpath suddenly he/she got hit by a car, who is to be blame for this death? As comparison to a person jumping in front of the incoming train in any New York Subway station which has happened a lots of time. Whom you can ask for the following tragedies? My grandma’s death, who left us at the age of 110 years, my brother’s son who didn’t even had the chance to come alive into this world.
I think it is a mixture of both your actions and destiny; they have to go hand on hand to make a great life for our own good. What is written cannot be change by us, but eventually we can make it pleasant as want or the worse nightmare of our lives.