Now according to Wikipedia physics comes from the classical Greek and refers to the knowledge of nature. In modern times it is understood to deal with the matter of matter and motion. Or the matter and energy. It could be said to be the science of what is and how it works.
Now meta has a number of meanings, all of which are valid in their specific circumstances, though I think that for us the word as used in meta-analysis, which is a study of studies. In the case of metaphysics—meta-physics if you prefer—you could think of it as the physics of physics.
Or, an understanding not of how reality is as it is, but an understanding for why reality is as it is.
With that in mind we can go on to the next post in this series.