Relax

At first I thought today's exercise was not going to be that hard for me. I have insomnia, and I do progressive muscle relaxation almost every night. The first part of the class, the relaxation part, was not that difficult. But then we got to the visualization part and i began to have problems. It was not that I could not see the things I was suppossed to see. I did see them. But because I knew logically that they were not real, i sort of pulled away from it and pulled myself out of the exercise from time to time.
I was still fairly successful at visualizing things. When we were asked to open our eyes, it seemed weird that we were still in a classroom and there were other people around because in my mind I was not in a classroom and there were no other people around. For a few hours after class was over I still had this weird floating feeling. I know this is not normal because I do relaxation/meditation stuff fairly regularly. I would be interested to know what part of the exercise effected me this way.