‘Defence System’ by Maciej Slaski is an ongoing project inspired by human psychic, exploring the issue of psychological defence mechanisms invented by Sigmund Freud. The easiest way to define them is as unconscious ways of avoiding and reducing the potentially threatening feeling and emotions like fear or anxiety. On the one hand they are necessary for proper mental balance, but on the other hand, when they are used excessively, can be a source of mental problems. The project is an attempt of visualisation these states. This work has a personal character. It is a part of the process of realisation of the unconsciouses and consciousness of the existing state.