Imagination is the guide that help actor to create, we must constantly learning and cultivate the imagination to enhance our creativity. No real performance is the foundation, to enrich their imagination through observe our life, to give yourself a better performance to the role of the initiative. "Imagination" is a form of reaction to objective things. It is creative and can open new four dimensional space for the way to the actor. It exists in our life and is closely related to performing art and creative art. Imagination can help us to understand a variety of things, and also help us to understand and expand a drama deeply.
In the process of designing scene, we must not only design contradictions, but also set the scene in reason, which requires us to improvise imagination. When I start learning theatre, we will learn theatre through the imagination to imagine yourself as a tree or a flower, when the trees are exposed to the weather experienced how the tree grow, we want to use the body feeling to express it, through their own understanding of the observed life to imagine that is improvise, how the plant growth, what is the tree's feeling when them in wind or rain. All of the elements of imagination has an impromptu performance in it, we have to understand it better and then perform it out.
Appreciation, feeling and understanding are the three most important aspects of the study of social functions of theatre. It first makes the audience to enjoy the vision of movement and hearing the communication or music, by the attracting story and the special image of theatre. At the same time, get infection and inspiration in their spirit and emotions, which related to the objective things in their life; to appreciate their life, artistic ideas and moral values. This can make audience produce thought which is related to what happened to them and to make the deepest thought from their heart out from their problem, it affect people from outside to inside.
I think theorist is who have their own thought in theatre. They create their own theatre styles by their thought of theatre. Their thought might be inspired by other theorist, but they will add some new ideas into it.
I have researched Jaques Lecoq, he is a French actor, mime and acting instructor. He built a school which is called L'École Internationale de Théâtre Jacques Lecoq,, it is a theatre school and it base on mime. His theory of theatre is Physical Theatre.
Physical Theatre is a well known type of performance now, the story is told mainly through body movement. Although some performing theatre disciplines are often described as "physical theatre", the genre features are dependent on actors' body movements rather than using text to convey stories. Performers can communicate through a variety of body movements, including the use of body to express feelings.