Demand and investigation into the understanding of the CBS in the color of black tefillin

You ask about distinctions that are the bread and butter of scholarship. To the same extent, you could ask what the difference is between a law of will and a law of action? Why distinguish between action and effect, or between a sign and a cause? These are different laws that require different things of us, and that's it. When you explain to me why a tzitzit is even needed and why it is done this way, I can think about why it is important to God that the blue is a separate unit and not an addition to the tzitzit. And our rabbis have already said about this: And what does God care whether one slaughters from the neck or the nape of the neck? Before you ask me why some things were given in the written Torah and some were given orally, ask why the Torah was given in the first place, whether written or oral? In short, you're asking me about floor D when we don't even understand floor A. Strange. By the way, it's better to ask a question like this as a continuation of the thread it refers to. If you put a link here, I'll do it myself.