This is the primacy of existence. Facts exist independently of any particular consciousness. They are what they are, which is to say, they are objective. The primacy of consciousness denies this view. It states that consciousness creates reality.
Reality is merely a by-product of a certain mental process.
In their view, reality is not objective. Rather, it is dependent upon the whims of the perceiver. The religious world view is just the same. While a religion, such as that practiced by the Heaven's Gate, may not say that you have the power to alter reality by the magic of your wish, it certainly says that someone can. Why, God, of course.