“Now, we need to make sure that all the points have contact with your skull. If you look at the screen, you’ll see that most points are showing red at the moment.”
I look at the screen and indeed, on the diagram which represents my skull, there are many, many red spots – a positive plague of red spots.
“Now, when the points have sufficient contact, they go green. So I’m going to manipulate the points until they have contact. It is not painful – a bit like having your head massaged.” And off he goes.