Allah s.w.t. does what He will

I have just entered Surah ArRa'd, this surah starts with alif laam miim ra, ArRa'd means the Thunder, not a Prophet's name

But I also know Allah s.w.t. does not do anything without purpose, everything happens out of His wisdom and mercy, alif laam miim ra, I am not trying to exegesis the Qur'an but I do love all of the Hijaiyyah letters that make up the Qur'an, and every letter has their characteristics like alif, you can read how special the letter alif is here.