The next level up in thought is “speech of thought”. There are two general levels here as well. The lower level of “speech of thought” is when one is listening to someone else speaking and it registers in his mind. This type of thought is lower than when he is thinking to himself, rather than hearing someone else speak.
The higher level of “speech of thought” is when he is thinking how to speak, or how to phrase what he is trying to say, before he actually speaks, and then he immediately speaks. From this level of “speech of thought” there is a descent to become “thought of speech” (which will be discussed later). This is to say that his thinking how to speak will become the thought of his speech, when he actually begins to speak.