It's Important to Relax
It's important to relax deeply when you are first learning to use creative visualization. When your body and mind are deeply relax, your brain wave pattern actually changes and becomes slower. This deeper, slower level is commonly called the alpha level(while your usual busy waking consciousness is called the beta level), and much research is being done on its effects.
The alpha level has been found to be a very healthful state of consciousness, because of its relaxing effect on mind and body. And, interestingly enough, it has been found to be far more effective than the more active beta level in creating real changes in the so called objective world, through the use of visualization. What this means for our practical purposes is that if you learn to relax deeply and do creative visualization, you may be able to make far more effective changes in your live than you would be thinking, worrying, planning, and trying to manipulate things and people.
If you have any particular way that you are accustomed to relaxing deeply or entering a quiet, meditative state, by all means use that method. Otherwise you may wish to continue using the method. Breathing slowly and deeply, relaxing each muscle in your body in turn, and counting down from ten to one slowly. If you have any trouble physically relaxing, you might want to seek instruction in yoga, meditation, or stress reduction, which will be helpful in this regard. Of course, a side benefit of all of this is that you will find deep relaxation healthful and beneficial mentally, emotionally, and physically.
It is especially good to do creative visualization at night just before at those times the mind and body are already deeply relaxed and receptive. You might like to do it while lying in bed, but if you tend to fall asleep, it's best to sit up on the edge of the bed or in a chair in a comfortable position, with your spine straight and balanced. Having your spine straight helps the energy flow and makes it easier to get a deep alpha wave pattern.
If it's possible for you, a short period of meditation and creative visualization done at midday will relax and renew you, and cause your day to flow more smoothly.