* To establish the setting. A still image can help the audience to understand where the action is taking place. For example, a still image of a forest might be used to establish that the action is taking place in a rural area.
* To create atmosphere. A still image can help to create the mood or atmosphere of the play. For example, a still image of a dark and stormy night might be used to create a sense of suspense or foreboding.
* To provide backstory. A still image can be used to provide information about the past of the characters or the events that led up to the action of the play. For example, a still image of a family photo might be used to provide information about the protagonist's childhood.
* To symbolize or represent something. A still image can be used to symbolize or represent something else. For example, a still image of a dove might be used to represent peace.
* To create a visual contrast. A still image can be used to create a visual contrast with the other elements of the drama. For example, a still image of a still forest might be used to contrast with the movement and action of the other scenes in the play.