In a virtual world where the user is immersed, it is easy to become lost or confused. Although some virtual worlds are limited, most require you to move around in them to experience more of the world. Virtual worlds may include doors or windows through which the user can pass, exposing new parts of the virtual world. Large worlds can include sign posts or other familiar mechanisms to guide the user around. There may be unique locations which are easy to return to through the use of a gesture or command.
Confusion comes from the computer generated nature of the world.
Unless the world designer creates extra detail, many positions and views within the virtual world look similar. Computer generated worlds also have to deal with the boundary problem. The boundary problem exists because virtual worlds are much smaller than the real world, and different designers use different methods to handle it. One may just prevent further movement, while another resets the user's position to the opposite side of the world. A third possibility is to let the user move off into emptiness, letting them find out for themselves that they are lost.