Harry Potter is imitating us.
Actually, Harry Potter magic can happen in our mind... I'm talking about visualization.
Think more of animism. The world full of spirits. We work within the natural laws of the universe.
I'm an animist so I believe in that. Everything, animated or not, simple or complex, that exists is sustained by what the Yoruba tradition call, "ase". It is the invisible force, a magical-sacred force of all things and there's no reality without it.
All of the things, plants, minerals, woods I believe is sustained by this force. However, in our world, 90% of the time, it's in a very disguised and hidden fashion. Often it comes to the point that humans who are continually sustained by the ase too deny it's existence, thus diminishing or augmenting its real power! How this is possible is beyond the scope of what I'm writing here.
The doctrine of hidden sparks in Kabbalah simply states that, everything in universe contain some glimmer of a divine force -- or else it could simply not exist. As a magickal person who both follow Yoruba and Kabbalah, I made my mission on earth is to reveal that spark within each thing through my practice. In my case, I do that by containing and empowering the force of ase through certain material elements of certain substances, or in other words, magick. In other cases that's not possible, and the only way to reveal that spark or ase is by withstanding the tests this article of life may pose. Each spark or ase has its particular path to be revealed.
It's just that we work in coincidences.
Why do you mean by working in coincidence? You see I don't believe in chance. Anything that happens here have causal connection.