Through conversations with his father, David learned about this way of training that his father called ""parcours"". He heard his father talk of the many repetitions he had done in order to find the best way of doing things. He learned that for his father, training was not a game but something vital which enabled him to survive and to protect the people he cared about. David realised that this was what he had been searching for, and so he began training in the same way. After a time, he found it far more important to him than schooling and he gave up his other commitments to focus all his time on his training.