>>37386
Here is your answer both clinically and as a hypno enthusiast.
Clinically this is called eye strain. Because the human eye and brain really can't keep up with all of the stimulus being received our bodies resort to tricks to picture the world around us. In the case of spirals a sort of haze slowly can wrap around the brain as its shortcuts are overstimulated and start to breakdown.
Hypnotists use this phenomenon to simulate a sleep-like state. It is believed that while you are in a state of consciousness that is not really asleep but not really awake that your thoughts are more malleable, your ability to fantasize things is stronger, and your defenses against the words of others is weaker.
So this reaction you are experiencing basically this means that your brain is settling into the right mindset for what people feel opens them best up for trance. Which means that yes 1 is correct. But it doesn't actually guarantee that 2 will be true, but nor that it is false.
In answer to 3, the answer depends on the hypnotist. Some want you to fight it, others want you to just relax and let yourself go. There are reasons for both approaches. Relaxing means you can just listen to the tapes and possibly be effected by them quicker. But this also runs the risk of breaking out of the trance before the experience is over. Fighting it adds to the strain on your eyes and brain which in the hypnotists intent puts you even deeper under making you more malleable. However this also runs the risk of not being entranced before the induction part of the file has finished and thus ruining the experience.