Tijn is trapped in a box measuring 1 by 1 meter and he is all cramped up. It is being a whole year we are removing the lid of the box and asking, "Tijn?"
Translation: Tijn is confined in a cube-shaped box with each side being 1 meter long. He's squeezed in there, having been in that compressed position for an entire year. We're now lifting the lid off the box and calling out, "Tijn?"