Rudolf Steiner wrote four mystery plays entitled:

Portal of Initiation (1910)

The Soul's Probation (1911)

The Guardian of the Threshold (1912)

The Soul's Awakening (1913)

They contain the whole essence of anthroposophy. Indeed, Rudolf Steiner said that, if through some unlikely chance the four Mystery Dramas alone should survive, in them the essential content of anthroposophy would be preserved. From time to time these plays are performed on the stage of the Goetheanum in Dornach, Switzerland.

Four Mystery Plays ... Selections ...

Four Mystery Plays the 1925 Edition

Includes The Portal of Initiation, The Soul's Probation, The Guardian of the Threshold, and The Soul's Awakening. Steiner's bold attempt to depict in dramatic form the experiences of a group of people and their relationships as they go on a path of spiritual development as well as the supersensible beings who help and hinder them.