The Quran is the Book of God, revealed to the Prophet of Islam in the first quarter of the seventh century. In the chapter Sad (Sad), the Quran says of itself:

“This is a blessed Book which We sent down to you [Muhammad], for people to ponder over its messages, and for those with understanding to take heed.” (38:29)

The Quran is, indeed, a book of wisdom, which gives us knowledge about the divine scheme along with all those principles that are required for successful living in this world. In short, the Quran is a book of guidance for mankind. It is, moreover, a simple book, which is easily understandable to anyone who has even the most rudimentary knowledge of Arabic. But all the things it has to offer can be discovered only through contemplation, called tadabbur. Contemplation opens the doors of the Quranic treasure of knowledge.

Source: Quranic Wisdom