 Twardowski thinks of the difference between act, content, and object in the following way. An act of presentation is a mental event which takes place in our mind at a certain time. The content is literally inside the mind, and exists dependently on the act, as long as the act does. The object is instead independent of the mental act (1894, 1, 4; §7, 36), and, generally speaking, not inside one's mind, although in some special cases the object of a presentation might be a mental item. This special case is the case in which the content of some presentation plays the role of the object of another presentation. This is not infrequent, because any time we discuss the content of a presentation, describing its characteristics and its relations to other things, we are presenting it. And for this to be possible, the content must play the role of object in the presentation(s) we are having (what we would call second-order presentations). To use the arrow metaphor once again, second-order presentations, then, are like an arrow directed towards another arrow. 