The author tries to contextualize observation in psychotherapy taking into account the latest discoveries in physics and within psychotherapy. Starting from the importance of observation, both in training and professional practice, the following questions are discussed:
1. Who is the observer?
2. What is being observed?
3. How do we observe?
Keywords: Observation, Observing and observed system, Setting, Quantum physics, Participating, silent and talking observer
Keywords: Osservazione, Sistema che osserva e sistema osservato, Setting, Fisica quantistica, Osservatore partecipante, silente e parlante.