The upstage area is often used for scenes that require a sense of distance or separation from the audience. For example, a scene that takes place in a forest or a large hall may be set upstage, to create the illusion of depth and space. The upstage area can also be used for scenes that require a sense of mystery or secrecy, as it is less visible to the audience.
Actors who are positioned upstage may have to project their voices more loudly in order to be heard by the audience. They may also need to use more exaggerated gestures and movements, as the distance from the audience can make it more difficult for them to be seen and understood.
The upstage area is often equipped with various lighting instruments and effects, which can be used to create different moods and atmospheres. It may also be used for projection screens or other visual elements that are not intended to be seen by the audience directly.
Overall, the upstage area is an important part of the stage, providing a variety of possibilities for creating different scenes and effects. It allows for a sense of depth and separation, and can be used to create a variety of moods and atmospheres, depending on the requirements of the performance.