The robbers have climbed out of the window and up on the roof of the speeding train. The cops are in hot pursuit, just a couple of carriages further back. As the flickering, monochrome scenery flashes past, we realise the villains have taken a hostage. Against your will, you are being forced to play a pivotal part in a desperate dangerous situation. Or so it seems. The actual circumstances are not quite so dramatic. But they are intense. And unfair. And  all must soon change for the better. 
Cells, atoms, nuclei, membranes, quarks, electrons, photons and protons. These, say the experts, are the building blocks of the universe. You can see them all, if only you've got a strong enough microscope. And what good will this do you? And what do we see if we look deep below your surface, at your very heart and essence?
When we think that we have done something wrong or have been the architect of a bad design, we tend to be merciless on ourselves. Well, we do. No inner-voice says 'never mind, we all make mistakes, all will yet turn out fine.' Instead, our imaginary dialogues with ourselves contain the cruellest criticisms. 'You fool! What is the matter with you? Now you have ruined everything!' We wouldn't be so horrible, even to our worst enemies. And right now, you have every right and reason to be your own best friend.