Let's clarify the German direction words zu and nach. Their rules are simple, despite common confusion. You use nach for cities, countries (without articles), and home (nach Hause). Example: Ich fahre nach Berlin. Conversely, zu is for people (e.g., a friend), institutions (e.g., post office), or specific places. Articles are key; zum = zu + dem. Basically, nach is for large areas and home, zu for people and specific locations. Practice makes it clear!