Its changing an event. Or in a more Fictional stand point energy being released as a torment or benefit. A spell I like to use for fun is Water earth wind fire I call on you to make this spell magic. This is a spell that allows you to make your self spells. Jehovah is a christian god that is understanding of belief imagination and Resurrection. I would take Resurrection and reincarnation as the art of coming back from the dead. They say That Jesus Christ resurrected. but who reincarnated do they say in history? Its seems Buddha. Now I've taken Tia chi. I know some about gathering energy and using it to use a kick or punch. But you can also use energy to rehabilitate your body mind and soul.
your post confuses me a little, but in answer to 'what is magick' there is no universally agreed upon definition. the closest i find is 'a natural neutral energy found in nature that can bring a natural desired change' there's a lot more to it than that, and many have different opinions on the limits of this energy, but basically it's energy.
because this energy is natural, it follows the laws of nature in this physical plane. [so spells that bring instant, dramatic changes don't work] but you also have those grey areas in magick like weather, beauty, and death spells which people argue are natural, but are too powerful for a mortal. [i recommend researching and drawing your own conclusions] with the resurrection you can argue this is not magick because Jesus was basically a god among men [technically, i mean he was an example by God to show how a human can live and be 'reborn' but there's also the father, son, holy ghost thing that always gives me a headache] and as with Buddha and reincarnation that's spiritual rebirth so it's more faith based, but if you believe energy doesn't die, it just transforms, you can argue it similar to magick.