As the play nears production, the rehearsal hours lengthen, and the lunch times shorten.

So that success might be assured my friend had a rehearsal parade.

Just as you may develop the muscle of your arm by calisthenic exercises, until it is able to perform real muscular work of strength; so you may develop your psychic faculties in this rehearsal work, so that you will be strongly equipped and armed for an actual psychic conflict, besides having learned how to handle your psychic weapons.