Learn Farsi: به خاطر خطر، شعبده‌باز هرگز برای غیب کردن عصا از آتش استفاده نمی‌کند. - Because of the danger, the magician never uses fire to make the wand disappear.

In Farsi, you can express purpose ("in order to...") using برای (barâ-ye) followed by the full, "long" infinitive of a verb. Here, غیب کردن (gheyb kardan) is the infinitive meaning "to make disappear." So, برای غیب کردن literally translates to "for making disappear."

Why is there an invisible ezafe (the "e" sound) between کردن (kardan) and عصا (asâ)?

When an infinitive has an object right after it, they must be connected by the ezafe. In this structure, the infinitive acts like a noun ("the disappearing"). It needs the ezafe to link to "the wand" (عصا), so you pronounce it gheyb kardan-e asâ (literally: the disappearing of the wand).

Why does "uses fire" translate with the word از (az) meaning "from"?

The Farsi verb for "to use" is a compound verb: استفاده کردن (estefâde kardan). Whenever you mention what is being used, you must place the preposition از (az) before it. So in Farsi, you don't "use fire," you "make use from fire" (از آتش استفاده کردن).

Does هرگز (hargez) automatically make the sentence negative?

No. هرگز means "never," but Farsi requires a double negative. Whenever you use هرگز, the main verb must also be negative. That is why the sentence ends with the negative verb نمی‌کند (doesn't do) instead of the positive می‌کند (does).