Why is Muhammad considered the last of the prophets, and what compelling impediment does the Just, Wise God see in sending a figure to explain the Quranic miracles and what is difficult to understand in the Quran, instead of leaving humans to dispute over the understanding of its verses?

The answer summarizes the necessity of believing in God, His Lordship (Rububiyyah), and His Divinity (Uluhiyyah), citing God's cosmic signs, miracles, the rational impossibility of the universe existing without a creator, and Quranic verses. It emphasizes that the universe is a proof of the Creator, and that God created the two heavy realms (humankind and jinn) for His worship. It also points to God's wisdom in favoring some of His creation over others, the sealing of prophethood with Muhammad (peace be upon him), and that the Quran and Sunnah are the reference points after the Prophet's death. It states that scholars are the inheritors of the prophets and calls for enlightenment through revelation and acting upon it to enter Paradise.