Could it be possible that "nothingness" is an actual dimension in and of itself just like space and time? If nothingness, void, vacuum, or empty space is an actual dimension, perhaps if we do not take that dimension into our equations of the universe, we could never hope to understand why there is such thing as "something". If virtual particles can briefly "pop" into and out of existence, there must be some sort of non-existence or "nothingness" (another dimension?) from whence they appear.
BTW, I do not believe that nothingness is "Pure Consciousness" or "Ultimate Reality" or anything mystical in nature. My understanding or my idea is that consciousness is a complex form of interaction. The physical world is a reality, but perhaps nothingness is another real dimension which forms that which we call existence.
Here is a link...
http://www.livescience.com/28132-what-is-nothing-physicists-debate.html