I always found and worked with the direct object as being the answer to the "what?" question to the verb. However it seems that it can also be a place or change of location. Is this correct? Ex: "The cat walks to the window." What is "to the window" ? I found on a book saying it's the direct object (accusative case). On another one "The cat is at the table." So if we ask "the cat is what?" - at the table. So it should be the direct object, however it seems like it's the indirect - dative case. So i'm confused, if someone could shed a light on this i'd appreciate.