Meaning Of مؤثر بالذات / Maussar Bizzat
In reality, every thing and every working of this universe is subject to Izan of Allah . Their autonomy, irrespective of its extent, is because of that Izan. Certain happenings which can be broken down into their cause and effect on a scientific level, their results can be attributed to those things, but happenings which cannot be broken down as such, their results will always be attributed to Izan of Allah because failure to do so will leave the room open for speculation and superstitions when there lies no scientific basis for them and these superstions often lead to polytheism. That is why the matters of Magic or Nafsi ulum and their results are always referred back to the Izan of Allah. As far as direct intervention of Allah is concerned, it can happen anytime and anywhere, whether it be a mussar-bizzat thing or not, however we have no way of knowing for sure whether such an intervention has taken place or not.
That is correct, I was saying the same thing as pointed out by you. My apologies if I failed to clearly present this point.