Be patient, all will eventually be revealed. I didn't want to use that common old everyday word. I don't do science. I'll just turn off my brain now. And I make no apologies.
Energy is too wondrous and mind boggling a subject to have just one name.
Mysterious Everything is a good name for the stuff. The Everything part is good because everything that happens requires it. And now, thanks to Albert Einstein and other scientists, we know that matter and energy are interchangeable. Matter can be converted to energy and the other way too. Two different sides of the same coin, you might say.