‘You see me smiling, or moving my fingers. Sometimes it even looks as if I am writing in the air. People are curious to know why. I am then in communication with people you do not see. I am engaged in tasks you cannot understand. I write replies to questions asked by someone far away. I help thousands of people every moment. But I do not publicise all this. A father does not publicise the help he is rendering his children.’ (EL, p. 13)