In this photo the two walking men are in the present. As they walk, they leave the past behind and find themselves facing the future. The past is now in the past, so one cannot be trapped in it, but must move forward. But at the same time the past acts as a teacher, because the two have learned something from it, and by not forgetting it they can avoid making the same mistakes. The future, ahead of them, is yet to come: it is unknown and can be frightening.

Thanks to past experiences however, the future can be less frightening, and this is because they change and learn more and more over time. All this, however, can only exist by walking in the present and moving forward. By now the experiences of the past have happened and cannot be changed, one can only learn by them, while the future has not yet happened. So one has to walk and move forward in the present, thinking what there is in it, in order to live and not to be trapped in either the past or the future