Jennifer Vance Free Choice #3 Martin Buber I and Thou

The excerpts from Martin Buber I and Thou made my head spin. I read it atleast 25 times and each time it made me feel unintelligent. I read it to my friends, parents and grandparents and by the end of all of this I can say I got the just of it. In the excerpts Martin Buber makes the distinction between expierence and encounter. He states that “Those who experience do not participate in the world. The world does not participate in experience. It allows itself to be experienced, but it is not concerned, for it contributes nothing, and nothing happens to it. I could not wrap my brain around the part "it contributes nothing" I understood nothing happens to it but doesn't the object contribute itself? For example if an object in the world causes me to fall and get hurt it has to contribute something to this event and the event would not take place? Maybe I didn't understand because they were just excerpts.