In Jerome K. Jerome's play The Passing of the Third Floor Back, when the part of "The Stranger" was played in London by Forbes-Robertson, the latter was so overcome by the lofty spirituality of the principal role that he had to cancel a long-standing arrangement with fellow-actors to go out after work in the theatre for a glass of wine at a tavern and thence to a restaurant for dinner. During the run of the play, F-R could not bring himself to do anything so material while his mind was still so exalted with the afterglow of "The Stranger's" character. A lady with long experience as an actress, both on the theatrical stage and in radio broadcasting, once told me that she had found the work of acting could become a path to spiritual self-realization. She said that she found it necessary to act so intensely on the stage in order to be thoroughly convincing that she lost herself in the part she played. It was a complete concentration. She became so absorbed in it that she really did identify herself with it, become one with it. In other words, she lost her own personal identity for the time. She projected herself so fully into her characters that there was no room for her own familiar ego. She concluded that acting was a yoga-path because the same capacities for self-absorbed thought, if sufficiently directed in spiritual aspiration towards the higher self and not towards some weak human character, could one day turn an actor into an adept. Henry Daniell denied all these assertions and told me his own experience refuted them. A point of view which partially reconciles these two conflicting ones is that his theory is correct for the great mass of actors, whereas the lady's theory is correct only for the geniuses among them. The first are always conscious of being witnesses of their own performances, being too egotistic to do otherwise; but the others are not, being able, like all true geniuses, to rise during creative moments above themselves. In confirmation of this point of view is the fact, noted by Charles Lamb and confirmed by the actress herself, that Mrs. Siddons, one of Britain's supreme theatrical geniuses, used to shed real tears (not fakes) when she played the part of "Constance" at Drury Lane. Henry Daniell's belief that the actor always remains apart in his inner consciousness is thus refuted. He may do so but the perfect actor, the genius, does not and cannot. He must live his assumed character perfectly if he is to succeed in completely putting it over to the audience.
This lady said further that it is well known in the theatrical world that certain actors become what is technically called "typed." That is, in their personal character they tend to become more and more like the kind of part they have mostly played during their career. If a man has been cast as a villain year after year throughout his life, he actually begins to develop villainous traits in his moral character as a result. This, she said, was the effect of his intense concentration while upon the stage reacting later on his off-stage mentality. Another extremely interesting thing which, she said, helped to convince her of the truth of mentalism, was that when she had given herself with the utmost intensity to certain situations in which she played on the stage, and played repeatedly over a long period of time, situations somewhat similar would enact themselves in her own personal life later on. The discovery startled her for it revealed the creative power of concentrated thought.
Finally, she told me it was common knowledge in her profession that the most effective way to learn the words for a part is to learn them at night in bed just before sleep. No matter how tired she was at that time the lines would sink into the subconscious with a couple of readings and emerge next morning into the conscious with little effort. Critical comment on the above: E.Y. says that it is true that most actors do lose themselves utterly in their roles. Nevertheless, this happens only if they are mediocre artists or unevolved spiritually. The supreme artists, as well as those who are highly developed spiritually, do feel perfectly able to play the observer to their acting part, to stand aside from the role even in the very midst of playing it.
-- Notebooks Category 21: Mentalism > Chapter 5 : The Key To the Spiritual World > # 80