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I open my old book. ‘Mental training and concentration have almost become buzzwords here in the Netherlands,’ states Joris van den Bergh, author of Mysterious Forces in Sports. Concentration is now called focus. He points to the concept of imponderabilia; the immeasurable and imponderables that the athlete must know how to handle as tools. That includes concentration training.
Del Ferro came to De Meer and went straight to work. They were extraordinary sessions. By holding tones and controlling breathing , he stimulated concentration, focus. It amounted to” shutting yourself off from all influences present.
This was far from easy with students with no real attention to the immeasurable and the imponderable, but with considerable talent for joking. There was a laughing atmosphere in the little class.
When an Ajacied had to come forward, others did their best to disrupt the concentration. It led to anger from Mr. Del Ferro, which in turn caused hilarity because: plan succeeded. A few committed themselves seriously, but after six months the plan was disbanded. Del Ferro had something better to do.