Magic Forums

I have been able to make flickers and seconds-lasting flames in hand...but my problem is visualization. When I try to visualize or imagine, I always have to fall back to prior memories of a flame. I don't seem to have the "active imagination" as is needed to do anything of real value. Any ideas how to overcome this? A flicker or few moments of fire in a palm of the hand is fine and dandy...but it's sort of fruitless if such thing can't be done over and over or with any sort of success. (In the idea of Hermetics and Magical Science.)