In a Dream
It was the energy behind the emotion that enabled me to levitate the glass— that, when I began to respond to the emotion (of fear in this case), and act upon it, or to think abt it— my ability to levitate objects vanished. It was the energy behind the emotion that enabled me to levitate the glass.
In a dream, I, my physical safety, was threatened after which I levitated a piece of heavy glass almost without even thinking about it. When my attention was distracted by my emotion, the target, my ability to levitate objects was no more. It happened within my control, and then it did not— as soon as i thought about it.