Metaphysics comes from the Greek words "meta" meaning "beyond" and "physics" which pertains to "the physical or nature" that which can be touched and felt. Combining those two Greek words would mean that metaphysical pertains to anything that is "beyond the physical" or those things that we cannot touch with our physical senses.
With that in mind, is love something that you can touch? Is faith something you can hold in your hand? Many "things" in our world cannot be touched but we feel them just the same. A belief in something bigger than yourself is metaphysical. Whispering a prayer that is answered is metaphysical. The joy we feel as we watch flowers burst into bloom at springtime is metaphysical.
The confusion gets worse because we mistakenly combine anything "spiritual" into the pot of "metaphysical" without doing our due diligence. "Spiritual" ideas and concepts require a belief in something that we cannot see or touch and yet it is part of our entire being -- mind, body, spirit.
Most people like to lump everything they do not understand into a "metaphysical" soup -- things such as prayer, meditation, universal laws, ghost/spirits of the departed, UFO's, miracles, past life experiences, near-death experiences, yoga, kung-fu, withcraft, voodoo -- it has become a catch-all phrase for anything that is different than the currently held worldview. It is also a "separatist" worldview and fear that limits our understanding that we are all connected regardless of the belief, the culture, the history or the color of skin. (Separatist worldviews, a topic for another time, is responsible for many mass murders in our colorful history as a human race.)
We experience metaphysical events every day of our lives. Did you think it was a coincidence that your car would not start, that the red light changed, that the phone rang with that wonderful news just when you needed it most? Start noticing the miracles around you and become a believer in the metaphysical.