After reading the book "Games for actors and non-actors"

It is a book written by Augusto Boal. And I learn "two unities" from the book.
Two unities that human beings all have the principles.

First is the unity of the physical and psychic apparatuses. For example, the idea of eating can induce salivation, love can bring a smile to the face, hate can produce a hardening of the features.

Second is the unity of five feelings, including feeling, listening, seeing, dynamising several senses and the memory of the senses.

In the following he uses some exercises to prove his theory, but the exercises cannot help me.

To conclude, it is a good book for theater actors to follow the exercises to improve their acting, maybe I should find some book about what should director do to guide the actors.