"Suggestion can indeed change experience which has already passed."

[inavalan]

"Incidentally, suggestion will reach many aspects of the self, and some which are very distant from the ego, for you are setting into motion psychic action, which is behind all realities. Suggestion will reach portions of the self of which the ego is entirely unfamiliar. Suggestion can indeed change experience which has already passed.

It can change the individual's present reaction to the past event, and alter the original implications and meanings that were once connected with such an event. Suggestion can shape future events because any action changes that which existed before it, and that which shall exist after it within your system.
[... 1 paragraph ...]
Suggestion then can shape the future. Expectation enters in here particularly of course. Suggestion can shape dreams, and the dreams themselves then operate as action. A strong dream can be a more significant psychic action than any physical experience, and it can change the course of the personality completely.

The inner senses will also react to suggestion. If you therefore suggest that you become more aware of their activities, then so you shall. You are giving suggestions, whether or not you realize it, constantly. You are forming your own physical image with all its strengths and weaknesses whether or not you are aware of it.

Suggestion, well used, with training and knowledge, will therefore allow you to alter the very cells of your body. The inner senses can be requested to operate in such a way that the ego will accept their communications. For the astral body is not some distant and alien other self, but it is even now that portion of yourself that you know but cannot see, that you feel but cannot touch."

—TES5 Session 202 October 27, 1965

[inavalan]

"First however I have a suggestion for Ruburt along the following lines. He is now at the point where he can greatly improve the condition of his eyes, and his vision, through consistent self-suggestion. The following phrase should be beneficial:

• I am relaxed and at ease, and confident. I can see easily and well."

—TES5 Session 202 October 27, 1965

[inavalan]

"Suggest that instead of falling asleep, you will come into another kind of wakefulness. Try to imagine that you are awake when you sleep. On other occasions when you go to bed, lie down and settle yourself, but as you fall asleep imagine that you are awakening the next morning. I will not tell you what to look for. The doing of these exercises is important — not the results in usual terms."

—NotP Chapter 3: Session 764, January 26, 1976