When a person takes control into their own hands, their life is no longer dependent on circumstances. The little ship of life can be steered in any direction away from the ‘fate’ that is allegedly predetermined for you. It is all very simple. Life is like a river. If you row the boat yourself, you can choose which direction in which you want to travel. If you simply give yourself up to the current, you will have no choice but to float in the direction the current carries you.
If you want karma, you will have karma.
When you think that your fate depends on some set of unforgiving circumstances or the mistakes of past lives, you bring that corresponding variant of your potential future into physical reality. The will is yours, for you are the child of God. If you want to be a Master, then this too is in your power.