Meditation
"He shifts the central point of his being to the inner part of his nature. He listens to the voices within him which speak to him in his moments of tranquility; he cultivates an intercourse with the spiritual world. He is removed from the everyday world. Its noise is silenced. All around him, there is silence. He is now plunged in a world of thought. He must develop a living feeling for this silent thought-activity. He must learn to love what the spirit pours into him. He will soon cease to feel that this thought-world is less real than the every-day things which surround him. He begins to deal with his thoughts as with things in space, and the moment approaches 20 when he begins to feel that which reveals itself in the silent inward thought-work to be much higher, much more real, than the things in space. He discovers that something living expresses itself in this thought-world. He sees that his thoughts do not merely harbor shadow-pictures, but that through them hidden beings speak to him."
Rudolf Steiner
Knowledge of the Higher Worlds 1918