In Sri Aurobindo's yoga there are no fixed kriyas though there is nothing against any kriyas as individual disciple finds it helpful or necessary at a given stage of his progress.
Will and Faith are the two main powers given to man to assist his journey of life. To succeed in his outer or inner life, man must cultivate these two.
The answer to the question of everything being fated and predetermined or tied to a link of cause and effect it, depends upon what vantage point we look at it. Both are true!
How a consciousness-based approach can give us a deeper understanding of Healing as we know it. A talk for the Sri Aurobindo Medical Association, Cuttack