Thought is interior speech; and as you converse with each other by words, so may you converse with, demand, and command the Inner “Presence” through thought. Thought can be made a dynamo by which you can charge the body, home, condition, or activity according to the consciousness or understanding you have of its power.
More Students have fallen down on this particular point than any other one thing. A few days of watchful care will entirely overcome such a habit. The outer is but a conglomeration of habits. In the Garment of the Student who has entered the conscious Path is placed a Cloak of Protection of Thought. In talking to oneself, the worded expression breaks through this Garment of Thought, and the Student wonders why he does not make more progress. It is because he has caused a leak in the Fountain of Wisdom. Thought is truly the Activity of the Soul of the God-man, the bringing into Activity that Mighty Presence of Energy which may be qualified by thought to any Height of Sustaining Power and Intelligence.
Ascended Master Instruction, The I AM Discourses Vol 4.
Silence! Peace! And Obedience to the Mighty I AM Presence forever.
Adorations & Affirmations, The I AM Discourses Vol 5.