Revelations of the Unconscious in the Life of the Soul from the Spiritual Scientific Point of View

This is not the case with spiritual experiences. They occur when they are repeatedly sought. Then they occur less and less strongly, and it takes more and more effort to summon them to mind. One does not acquire a habit by merely repeating an experience, but by repeating it one becomes less and less able to acquire it. To their surprise, some who seek the way to the spiritual world have to be convinced of this.