An idea that takes root in the subconscious mind has no capacity for reasoning and MUST be discharged in motor action – whether a good or a bad idea. Essentially every single word uttered to a subject in a hypnotic state such as those experienced in any meditative or relaxation yoga practices may result in uptake of post hypnotic suggestion and thus influence that individual’s actions.
One definition of meditation is the absence of all thought and to just be. If a person is mulling over a problem during meditation, they are actually thinking and therefore no longer meditating in its truest sense.
Hypnosis on the other hand, is to have a specific thought and affect a desired outcome, i.e. stop smoking, lose weight, stress management, pain management etc. In hypnosis just as in guided meditation the hypnotist may take you down a path, but instead of just suggesting a stroll through beautiful scenery the hypnotist skilfully uses suggestion to achieve predetermined goals – reduce exam test nerves, stop nail biting, develop confidence etc.
So as you can see if someone is participating in a guided meditation, the guide is also suggesting everyone to see this, hear that and experience with as many senses as possible. Some people may smell the flowers, feel the breeze, even hear sounds in this internal picture whilst usually also deepening relaxation and lowering anxiety levels albeit short term. Clearly this is no different in concept from the hypnotists scripting bar the actual suggestions themselves and resultant behavioural change.