Its real. I am keenly aware that this sounds insane. However, I have seen ghosts. Real spirits. I have dreamwalked and met people who I would later meet in the waking world. I have seen the branching future, and knowing a sequence would lead to ruin, a sequence I could not anticipate that existed outside normal patterns, averted that disaster by making a different choice. And as a test case making the same choice to disastrous results. I have spoken with elemental forces. Made friends with some, allies of others. The enemies I had already.
When I work a spell, I can feel the world shifting and when it is complete, feel it take hold. I can feel the world change. I know this sounds delusional, like madness. The problem is duplication, with science you input something and can test for a reaction. Magic is not science. Magic is art. In the same way that you can play notes in the same sequence that Charlie Parker did but lack the same quality of Charlie.
Magic is a system, just like musical notes are a system but no two mages will work in the exact same way as no two musicians will sound exactly the same. You can get close, same teachers, same styles, same outlook. But there is always differences and those differences make it hard to prove. I don’t feel the need to justify myself, but I am an adult and know to whom and when I can speak without being locked up by the largest secular religion, psychology. I say all of this to make this point, Magic is real. Do not dismiss what you cannot explain. But don’t slavishly follow it either. This world contains more than you can know.